Where Soul Meets Body: Right Exercise & the Neurobiology of Bliss
Running head: THE NEUROBIOLOGY OF BLISS
Where Soul Meets Body:
“Right Exercise” and the Neurobiology of Bliss
Towards An Objective Idealism: Embodying Spirit
“In order for man to succeed in life, God provided him with two means, education and physical activity. Not separately, one for the soul and the other for the body, but for the two together. With these two means, man can attain perfection.” –Plato (Cited in Ratey, 2008, opening)
I was fortunate recently to be invited to teach two different community classes at Berkeley’s Lululemon Athletica yoga clothing store. In the first, which I chose to call “Martial Yoga,” I spoke briefly about the common source of martial arts, yoga, and meditation, allowing the attendees to experience inner stillness and then integrate that stillness into various levels of motion, each a greater disturbance to a relaxed inner alertness. While yoga has become enormously popular in the last ten years, few people know that the term asana originally implied nothing more than the seat one would sit in for meditation. Another lesser known fact is that, technically, the asanas of Hatha yoga come from martial arts, having evolved from the ancient Indian combat system, Kalari Payattu. Based on traditional lore, both Buddhist meditation and martial arts were brought from India to China by Bodhidharma, who instructed the Shaolin monks in the martial movements that became the traditional kung fu that we know today – evolving from there across the Asian subcontinent and into Japan. So, the history of meditation, martial arts and yoga are synonymous. Body and soul originally formed an integrative practice, meditation allowing us to calm the mind and experience inner stillness – martial arts allowing us to act from that stillness, staying centered inside even whilst attacked. Borrowing from the Chinese philosophy of the Dao, meaning the universal way, I spoke of martial arts as moving meditation or moving Zen – the way you meditated a simple metaphor for the way you moved with mindfulness on the mat, the way you moved on the mat a simple metaphor again for the way you moved in your life. The second class, which was held in celebration of Lululemon’s one year anniversary was called “Cultivating Stillness,” and featured a short participative lecture and “meditation sampler” session. In putting together my speaking points for the evening, I reviewed the history of meditation – this time aided by my knowledge of Ken Wilber’s Integral psychology – and was able to align one of his important theoretical distinctions with one that was practical in nature. In the classical Indian Vedantic sense, meditation is a process of Self-realization, of inquiring into the nature of the self. I initiated this process somewhat humorously in the workshop: “I have a BMW, therefore I am not my BMW…. I can move my body, therefore I am not my body… I have thoughts, therefore I am not my thoughts... I can feel my feelings, therefore I am not my feelings. Who am I?” This traditional self-inquiry process or “pointing out instructions” helps us to transcend the world in step-by step fashion to identify with the Self as the radical Subject that is aware of objects: a Transpersonal witness of all activity. The goal of meditation is to still the mind so that we have the inner experience of this pure Consciousness, this transcendent Self. Enlightenment is the realization that our individual self is actually Infinite, that Atman is Brahman. Even as our mood changes from positive to negative, as good or bad things come and pass, the transcendent Self rests as the uninvolved witness to this play, contented in a place beyond the sway of duality, lending a sense of peace that has no opposite. The nature of the Self, of Spirit, is wholeness, fulfillment, bliss.
While this general conception of spiritual practice is to be honored, the realization of Self as a Divine transcendent to the world can also be problematic. Those who spend long hours in meditation, seeking a Self that is beyond the manifest realm often tend to deny the importance of the physical, including the wellness of their bodies. Exercise is simply a strain that creates more of the stress you are trying to release through meditating. This so called “subjective idealism” posits that only Unmanifest Spirit or Brahman is real and that manifest matter is Maya, illusion, a temporary and lifeless emanation of Spirit. It only takes a brief reading of Vedantic literature such as Shankara’s “Crest Jewel of Discrimination” to get the sense of a basic message that permeates what otherwise is classic and brilliant writing: the Transcendent alone is Absolute and Real, the Relative world is mud, the body, sin. This dualistic view of mind and body, Spirit and matter, east and west, explains why it was once believed that one had to retire from the world and become an ascetic to gain enlightenment. Historically, the enlightenment where one realizes the Self beyond the world as the end goal marked the cleft between the Hinayana and Mahayana schools of Buddhism – the “lesser” vehicle and “great” vehicle. The use of the term vehicle to imply traveling the path of spiritual enlightenment stems from a parable in the Lotus Sutra in which a father uses three carts or vehicles to lure his sons out of a burning building (Wikipedia 2008). What makes the Hinayana a lesser vehicle is similar to the critique of subjective idealism: while those who had freed themselves from suffering by attaining enlightenment in the Hinayana were indeed perfected beings (or arhats), those in the Mahayana viewed this enlightenment not as the end of the road, but as a first step. By taking the “Bodhisattva vow,” Mahayana Buddhists promised to reincarnate in the world until all sentient beings had reached enlightenment. Taking such a vow marked not just a tolerance of the cycle of suffering in birth and death, it was symbolic of a deeper realization: while one had transcended one’s attachment to the world, one also had to transcend one’s aversion to being present in the world. Developing the “skillful means” to compassionately lead others out of suffering, so called “engaged Buddhism,” meant that the body and the emotional world had to be fully developed and embraced as well. Without this, the world was not transcended at all, it was repressed. This is ideally the Advaita or non-dual realization: the Transcendent Divine is Immanent in the world; the imperfection is perfect as it is, the Maya is Brahman. Wilber (1999) speaks of the integration of God and the Goddess – one ascending to reach the Transcendent heavens, one descending to embrace the Divine as Immanent in the earth:
“…the most comprehensive meaning of “God” and “Goddess” is simply as Ascent and Descent, Eros and Agape, wisdom and compassion, consciousness (purusha) and manifestation (prakriti), transcendence and immanence. Neither God nor Goddess is more important, higher, deeper, or better. Rather, each covers half of the eternal cycle of reflux and efflux, reaching higher in wisdom and reaching deeper in compassion, the Eros and Agape of Spirit's play in the world.” (Introduction)
The distinction between Eros and Agape, between a Love that evolves from matter to spirit and a Love that involves the world of spirit in matter (fatherly and motherly love if you like) also applies to the practical distinction of which I spoke earlier: that of meditation and mindfulness. While we meditate to contact Transcendence or Being, we are mindful with Presence in the world. In meditation we close our eyes and dive within, yoking our awareness (from yoga) to a focal point each time we find ourselves in thought or otherwise drawn out into the world by distraction, using a single thought in mind to transcend thought. In Zazen mindfulness, you don’t even close your eyes – you keep them open downcast. While you can practice mindfulness with your eyes closed as well, the idea is not to transcend the world but to be present to it as it is without reaction. Everything is perfect as it is to a Self that rests beyond attachment and aversion. This means that you hold your body completely still and use your breathing awareness as a focal point instead, which calls your awareness back to being emotionally present in the body (which is why I prefer the term “body-mindfulness”). In addition, that focal point may shift so that you are mindful of various sensations: your foot hurting, a sad emotion, an itch, the dog licking your face – whatever – but the point is that instead of reacting or moving away from the experience, you relax into it becoming even more deeply present to it until it dissolves by itself. A good metaphor for mindfulness is the conscious choice or “subtle effort” required to breathe and relax while a massage therapist works on a trigger point or ‘knot’ or while you breathe and relax into the tension created by the stretch of a yoga asana. In summary, meditation ascends to reach a Transcendent Divine through the mind, and mindfulness descends to embrace the Immanent Divine in the world as it is with a non judgmental presence through the heart.
What I would like to demonstrate with this paper is that rather than exercise and the body being seen as contrary to the subjective ideals of meditation, according to the research, they actually enable one to integrate and embody the objective signs of the bliss sought in Spirit. As hinted by the original embededness of martial arts (yoga) and meditation, physical practice is not just a complementary aspect of spiritual practice – it is spiritual practice in and of itself. By reviewing the brain anatomy associated with the fight or flight response, the latest research on the effect of aerobic and anaerobic exercise on anxiety, mood, and brain growth I hope to “reensoul” the body – painting a picture of “Right Exercise” as inherently providing the mindfulness necessary for our spiritual aspirations to be brought to life in our bodies.
The Neuroanatomy of Emotion and the “Amygdala Hijack”
With all our talk of awareness and feeling, it seems fitting that the brain function of emotion is deeply tied to both core consciousness and the encoding of memories. Neuropsychologist Jack Panskepp offers that emotion should really be termed “e-motion” for evolutionary motions in that they originally were designed to provide direct feedback on the status of the organism to the brain (Solms & Turnbull, 2002 p. 113). Emotion, it is believed, appeared early on in phylogenetic history with the mammalian brain (our own limbic system) long before homosapiens evolved. The limbic system differs from the lower, more primitive brain stem or reptilian cortex in that it involves the awareness of emotion, an internal perception of certain subjective feeling states, or qualia, that initiate conscious actions in response. Emotions make us evaluate and choose consciously, prompting our most basic cerebral reactions, including fight, flight, and freeze. The components of our brain responsible for these reactions include the thalamus, which is a sort of relay station directing incoming information to other brain processing areas; the hypothalamus and the pituitary gland, which act as something of a thermostat, constantly adjusting the body to keep it in equilibrium with the environment; the hippocampus is essential for encoding long term memory and, as alluded to, rests closely behind the amygdala, the basis of emotion. As the amygdala assigns a certain level of threat, the hippocampus is nearby to record the things that were perceived as dangerous (Carter, 1998 p. 16). Another important structure for the generation of emotion is located directly in the brain stem, the periaqueductal gray (PAG). Its vertical columns produce either pleasurable or unpleasurable sensations, with the different binary “color” combinations creating qualitatively differing shades of emotion. It is interesting to note that the creation and psychological perception of emotional “unpleasure” is not necessarily synonymous with the somatic sense of physical pain, even though the PAG is responsible for both (Solms & Turnbull, 2002 p. 108).
The most important thing in understanding the way the brain processes emotion is the distinction between the unconscious, survival based reactions of the brainstem and emotions that have been processed with conscious thought in the frontal lobe of the human brain, the cerebral cortex – the part concerned with conscious, rational, executive thought, speech and action. In the first case, the feedback from a potential threat is perceived almost instantaneously, taking a “quick and dirty” (Joseph LeDoux cited in Solms and Turnbull, 2002 p. 135) route from the amygdala to the PAG that excludes cortical consciousness completely. Thus, the survival mechanism needed – jumping back, lunging forward or freezing – can literally be enacted before we are conscious of what we are doing. This also helps to explain anxieties and phobias that are triggered based on past exposure (even if only very brief) to something threatening that creates a seemingly sudden and unfounded sense of fear or anxiety in the present moment. While some of our reactions have important survival value, others are maladaptive, persisting even to the detriment of the health of the organism. In these cases, even though the unconscious link between the memory of a certain stimulus and its presence is indelible, its outward manifestations can be inhibited. It is the work of behavioral psychologists to work with patients to provide graded exposure to the original noxious stimulus until a reaction is neutralized. Interestingly, brain imaging shows that even when outward manifestations of fear-anxiety are inhibited e.g. through behavior modification in laboratory rats, the reptilian cortex continues to be highly activated, to almost the same extent as in animals displaying full-blown responses. Neuropsychologists Marks Solms and Oliver Turnbull (2002) explain:
“What differs dramatically between the two groups (of rats) is that the frontal lobes are concurrently highly activated in the fear-inhibited group. …the extent of frontal-lobe development is what distinguishes us humans most from other mammals. This is also what most distinguishes the brain of the adult human from that of the child. The frontal lobes develop rapidly during the first few years of life and continue to do so until late adolescence. These neuroanatomical facts explain the enormous differences with respect to flexibility and degree of emotional control that distinguish the human adult from the child and from other mammals.” (p. 136)
While we may have the capacity for higher emotional flexibility, founder of Emotional Intelligence, Daniel Goleman explains how the “amygdala hijack,” or the reptilian fight or flight response, can still take over in an instant:
“Emotions make us pay attention right now – this is urgent – and give us an immediate action plan without having to think twice. The emotional component evolved very early: Do I eat it, or does it eat me – you don’t sit around and Google it.” That emotional response “can take over the rest of the brain in a millisecond if threatened. Today the threat is symbolic (‘he's not treating me fair’) but we respond with the same biological response” (Cited in Horowitz, 2008, emphasis added).
Clear, calm, or otherwise rational behavior goes out the window as we are triggered and lose emotional control, reacting as if it were actually a matter of life or death. On the other hand, the opposite of the amygdala hijack is Emotional Intelligence – “the integration of the emotional center with the executive center” (Ibid) implying, as we have seen, the mature frontal lobe capacity to inhibit or stay present with the otherwise automatic reactions of the emotional center. Solms and Turnbull (2002) explain that the relationship between the emotional and executive centers are similar to that of Freudian “id” impulses and the “ego” or “superego” defense mechanisms that inhibit them (p. 137). Becoming conscious of unconscious reactions, perhaps at first by recognizing them in retrospect, allows us to take a step back and consider the source of such reactions and if they are really necessary – if not irrational altogether. If we decide that they are actually a detriment (as well they may be since you can’t really run away or take a swing at your boss in the boardroom), we can work towards “catching ourselves in the act,” being mindful of our emotions as they arise in the moment, thus inhibiting and eventually neutralizing the reactive patterning of the past that tends to make up our personalities. Rita Carter (1998) summarizes this process in terms of brain physiology:
“If good sense dictates that one of the three basic survival strategies is in fact appropriate, the bodily reaction already begun will be continued. But if the rational decision is to respond verbally rather than physically, the cortex sends a ‘damp things down’ message to the hypothalamus, which in turn signals the body to halt or reverse the changes it has started to make. This lowering of bodily arousal is in turn sensed by the hypothalamus via a loop-back system, and the hypothalamus then sends inhibitory messages to the amygdala calming activity there, too” (p. 90)
This is core to the process of Cognitive Behavioral Therapy as well, which uncovers unconscious “scripts” or “irrational thoughts” as well as many psycho-spiritual practices that combine self awareness (i.e. mindfulness) with similar techniques that allow one to inquire into thoughts that have an emotional charge. While emotional maturity is certainly the goal of psychological work, it is the role of executive coaches and consultants as well to support corporate managers in developing interpersonal and leadership skills. In studying 500 companies, Goleman found that Emotional Intelligence, involving the capacity to interact and solve problems in calm, rational, and empathetic ways, was twice as important in all jobs in distinguishing the good from the great companies. For top leaders it makes up 80-90% of the distinguishing competencies. In observing videos of the best leaders, they got people to laugh three times more often. “When you realize emotions are contagious, you understand a primal task as a leader,” Goleman says (Horowitz 2008). Clearly those who are intimately familiar with their emotional center and can maintain perspective when others begin to react as if it were a matter of life or death are happier and more successful people. Bringing presence to one’s body through mindfulness seems to parallel the integration of the higher executive and lower emotional centers and plays a key role in developing emotional maturity and heart. We can now look at the value of exercise in providing a powerful and direct influence on the ability to ground our higher brain functioning and save the panic of primal, unconscious reaction for when it is actually needed.
The Role of Exercise in Raising the Fight or Flight Threshold
While meditation can deepen the stillness necessary to bring a steady presence to our emotional life, exercise plays an important non-cognitive role in actually raising the flight or flight threshold. As we saw with the relationship between meditation and martial arts, the former deepens stillness and heightens awareness and the latter allows this relaxed alertness to be maintained in the face of irritation, thus inhibiting the brain’s otherwise irrational and largely unconscious defense mechanisms. In order for this process to take place, spiritual practitioners must be willing to look at a more variegated meaning of the term “stress.” While many meditators prefer the soft inner calm of meditation to the “strain” or “stress” of vigorous exercise, Dr. John J. Ratey, author of Spark: The Revolutionary New Science of Exercise and the Brain (2008), explains that if balanced with rest, stress equals healthy stimulation:
“Exercise controls the emotional and physical feelings of stress, and it also works at the cellular level. But how can that be, if exercise itself is a form of stress? The brain activity caused by exercise generates molecular by-products that can damage cells, but under normal circumstances, repair mechanisms leave cells hardier for future challenges. Neurons get broken down and built up just like muscles – stressing them makes them more resilient. This is how exercise forces the body and mind to adapt….Stress and recovery. It’s a fundamental paradigm of biology that has powerful and sometimes surprising results” (p. 60).
It is a bit of a paradox, but as your coach will tell you, you get stronger when you rest not while you are working, yet without the mild stress, there is no growth. During exercise, the increase of oxygen-rich blood flow supports the conversion of glucose to adenosine triphosphate (ATP) which cells need to fuel themselves. But it is after aerobic activity and during the recovery process that several important proteins start to go to work to optimize brain functioning. In particular, brain derived neurotrophic factor (BDNF) acts as a kind of “Miracle-gro” for the brain actually producing neurogenesis (new brain cell growth) and increasing synaptic plasticity, helping neurons to form new connections. Other similar proteins such as insulin-like growth factor 1 (IGF-1), fibroplast growth factor (FGF) and the related vascular endothelial growth factor (VEGF) support cell growth and prevent natural deterioration allowing neurons to meet fuel demands without gumming up from waste buildup. The overall effect allows the brain to thrive and averts the detrimental effects of the stress response (fight or flight). As the body learns to relax while stressed, the brain begins to receive a new message, inhibiting the feedback loop of the stress response from the body including the subjective experience of “unpleasure,” as we saw earlier. If the body relaxes, the brain figures it can do so too. In a 2004 research study, Joshua Broman-Fulks from the University of Southern Mississippi tested whether exercise would reduce anxiety sensitivity.
“He found fifty-four college students with generalized anxiety disorder who had elevated anxiety sensitivity scores and who exercised less than once a week. He randomly divided his sedentary subjects into two groups, both of which were assigned six tweny-minute exercise sessions over two weeks. The first group ran on treadmills at an intensity level of 60 to 90 percent of their maximum heart rates. The second group walked on treadmills at a pace of one mile per hour, roughly equal to 50 percent of their maximum heart rates.” (Ratey 2008 p. 91)
While we commonly think that doctors would tell those with generalized anxiety disorder not to exercise as it would surely exacerbate the issue, the study found both regimens tended to reduce anxiety sensitivity, but that only the high intensity group felt less afraid of the physical symptoms of anxiety. This distinction between the two groups started to show up as immediately as the second session of exercise. The idea is that when our heart rate and breathing increase as a result of exercising yet we choose to stay with it, we learn that these physical signs do not necessarily mean we have to freak out mentally. “We become more comfortable with the feeling of our body being aroused, and we don’t automatically assume that the arousal is noxious” Ratey explains (Ibid). The key finding then is that oftentimes anxiety is a cognitive misinterpretation, an irrational thought that starts the fight or flight response unnecessarily. Because we are generally in control of the amount of stress we experience when we exercise, we can use it to slowly inhibit the symptoms of anxiety and stress, teaching our brain over time that the body is much more resilient than we believe. As many of us experience, once you have become accustomed to a certain level of physical activation, it takes a higher level of intensity in daily life to trigger us emotionally. When you have chosen consciously to stay present and relaxed, breathing through manageable yet increasing levels of stimulation over time, irritations that formerly would have triggered the amygdala hijack in daily life hardly show up as blips on our radar. While the breathing and body awareness of mindfulness can be practiced at any time in order to send the conscious message to the amygdala to relax, exercise provides a kind of gradual yet concentrated practice time. The more we exercise the sustained, subtle effort to rest in stillness as outer dynamism increases, to “breathe and relax,” the larger the muscle of mindfulness grows, allowing us to integrate in effect, the unphaseable equilibrium of Spirit into motion. As we become more alive in our bodies, we learn to separate physical stress from mental “unpleasure,” providing an experiential answer to the Zen riddle that asks, “What is the difference between pain and suffering?”
“Right exercise,” as Buddhists might call it, sees the intimate connection between practice and mindfulness, between exercise and self mastery. You are not just working out your body, you are training your mind to stay present without reaction – and it is from here that caring and all other forms of Emotional Intelligence emerge as our frontal cortex can remain engaged in a thoughtful, sensitive and creative way. However, the Dao of practice may be trickier to master than we think. Tapping into this effortless way of being and moving requires a careful balancing act. Too much striving and we actually do create more stress, hitting an early plateau in our development; not enough stress and we fail to change at all, nor feel the sensation of what it means to live alive at the leading edge of our growth potential. It is the job of a coach or teacher to reinforce the positive habits of practice that lead to a healthy balance of rest and activity, the creativity and challenge that leads to continued progress, as well as the internal capacity to stay present with where we are in the moment. Right exercise then cultivates both outer habits as well as an internal awareness of inner balance, a sense of “doing without doing” (wei-wu-wei in Daoist lingo) that leads to steady growth and more importantly transfers the practice of staying centered to daily life. Get out of the moment by getting too attached to winning and losing or playing too fast and you create stress from striving and poor movement; fail to engage with what arises in the moment, to push yourself up to your edge, and you avert the opportunity to transcend fear and live life meaningfully with heart. In running, finding this balance can be achieved with as simple a measure as monitoring your heart rate – by keeping at the same heart rate, you never work any harder, yet improvement is constant! Other activities that involve greater cognitive complexity such as playing the piano, competitive sports, or martial arts involving the mastery of technique make greater demands on our ability to be mindful as we will see. In these cases, the greatest teachers are also the ones who get us to slow down deeply and pay attention in the moment so that we can stay relaxed and play the right notes, hit the ball the correct way or respond calmly and thoughtfully as the case may be. As we develop the habit to be present to each micro moment of action, we learn also to feel when we are rushing, creating the gaps of awareness that lead unwanted mistakes to be reinforced unconsciously. However, over time and with right practice, we experience what it means to stay internally balanced as we move and the awareness of each moment begins to flow in one effortless stream of skill in action, a clear, stillpoint of silence in the midst of chaos. Coaching with consciousness places the cultivation of Being on par with Doing, supporting each athlete to push or pull back where necessary to find the middle way beyond straining and fear, attachment and aversion, actualizing the capacity to increasingly access the zone state.
Dr. John Douillard (2006), founder of “Invincible Athletics,” tells the story of Warren Wechsler (who I incidentally attended a meditation course with in ’96), a business man who had attempted to take up running in early-mid life, but had gotten discouraged due to injury. Dr. Douillard explains the remarkable shifts that occurred for Warren after attending his “Body, Mind, Sport” workshop, which starts by first emphasizing inner balance over outer achievement with the principle of “Do less and accomplish more:”
“Warren was so conditioned to expect strain and pain that he found it strange not to hurt during his workouts. At first he noticed that his heart rate would jump from 75 BPM (beats per minute) to 170 or 180 as soon as he started exercising with even moderate exertion. After three months of reconditioning his body to do less and accomplish more on his exercise bike, he found that he could pedal for over an hour with his heart rate around 120 and his breath rate even and comfortable at around 15 breaths per minute. In January 1990, Warren felt ready to run and rejoined his health club, which featured an indoor track. At first, finding himself lapped by his old running partners, he had to struggle against his desire to keep up with them. Listening carefully to his body – not to the ambitions of his mind or to his sense of pride – he let them pass him. Gradually he picked up speed. Soon he surpassed his former running partners, only this time he did so without injury or pain…. He called me at my office eighteen months after starting the Invincible Athletics program and gave me this report: ‘John, I'm 38 years old. I've never been an athlete in my life. I took your course to give my running one last try. Since then, I've lost 30 pounds and 6 inches of girth without trying or dieting. I don't get sick or anxious anymore, and I've got more vitality than I've ever known….Yesterday, running on my indoor track, I ran 17 miles. I felt absolutely fantastic the whole way. I felt as good when I stopped as I did when I started. The amazing thing was that I ran a 6-minute-mile pace for the entire 17 miles. It was unbelievable. I was in the Zone. I felt like I was running on air. It was the easiest thing I've ever done….The most incredible thing was that my heart rate averaged about 120 BPM during the entire run. Sometimes it went even lower, but it never went over 130 BPM while I maintained the 6-minute pace. When I counted my breath rate, it was between 12 and 15 breaths per minute. [The average breath rate at rest is 18 breaths per minute.] At this rate, when I'm 40 I could be running marathons with the best runners in the world, having the runner's high experience the entire time’….For Warren, exercise had become a means of removing stress. The more he ran, the more rejuvenated he felt.”
This story very clearly illustrates two distinct aspects of body-mindfulness or a consciousness centered approach to exercise: his choice to mindfully relax his effort and abandon the “no pain no gain” approach he was accustomed to in favor of keeping with consistent internal standards of breathing and heart rate and his choice to stay present with his emotions, surrendering the feelings of pride that tempted him to abandon his inner poise as friends passed him on the track. Not only did exercising the subtle inner discipline to stay present in the moment pay off splendidly over the long term, he was healthier and happier inside too. In finding success not just by chasing after it as a goal to be reached in the future but by settling into wherever he was on his path, he developed a deeper presence, realizing a sense of fulfillment beyond seeking or escaping – one that is Immanent, here and now.
The Neurobiology of Bliss: A Sustainable Good Mood with Exercise
Spiritual aspirants define bliss as the special state of realization where one is contented from within – a steady sense of happiness that is beyond sway – part equilibrium, part overwhelming joy. Again we find, through the body, these subjective ideals can be lived by exercising. While many find it offensive to equate the ideal of bliss with “runner’s high,” or a chemical “endorphin rush,” which seems to involve some kind of addictive drug dump in the brain, neuroscience explains things differently. Rather than providing a sharp spike in happiness, an artificially stimulated high followed by a low, exercise actually balances neurotransmitters, providing the steady sense of happiness that counteracts the effects of stress, prevents addiction and sustains a good mood. Not so far off from bliss after all. While indeed exercise can produce endorphins, the morphine like hormones that allow us to persevere when the body is pushed to its maximum and that provide the floaty feelings of calm and satisfaction, it also balances our mood by naturally regulating levels of the neurotransmitters that antidepressants target (Ratey, 2008 p. 121-2). Norepinephrine (adrenaline) wakes up the brain and gets it moving and is also responsible for improving self esteem, which is related to depression. Dopamine improves our mood and sense of wellness, and is directly related to motivation and attention. Studies demonstrate that exercise leads to dopamine storage triggering enzymes that create dopamine receptors in the reward centers of the brain that lend the sense of satisfaction that comes from a job well done. If the demand is steady, so is the regulation of these pathways, which is what actually contributes to the control of addictions. Serotonin is also related to mood and self esteem, and is often referred to as the “policeman of the brain” in that it helps regulate impulses, putting a damper on overactive or out of control responses in a variety of brain systems. Finding an exercise partner has been shown to automatically boost levels of serotonin, explaining why it seems more enjoyable when we have someone to workout with.
How does exercise stand up against antidepressants? In a 1999 landmark study appropriately called SMILE (Standard Medical Intervention and Long-term Exercise), researchers at Duke University concluded that exercise was as effective as medication in lowering depression (Ratey, 2008, p. 122). In a 2006 study, Madhukar Trivedi, a clinical psychiatrist who is the director of the Mood Disorders Research Program at the University of Texas Southwestern Medical School, showed that patients who were not responding to antidepressants lowered their scores on a common depression test by an impressive 10.4 points out of 17 (p. 125). Study after study shows that exercise is equal to or better than drugs such as Zoloft or Prozac, providing relief from symptoms without the side effects. In addition, BDNF supports neurogenesis and increases neuroplacity as we have seen, which, in tandem with the self discipline that exercise creates allows us to work towards actively creating new life habits – both a great support for breaking through the stuck, self defeating mental patterns of depression. Even though there are those who still value their meditation practice as the sure way to bliss, given the overwhelming research on exercise, why not rise one more step out of suffering? The DSM IV (Diagnostic and Statistical Manual of Mental Disorders) lists nine symptoms for depression that must be present throughout the day almost every day: depressed mood, markedly diminished interest or pleasure, weight loss or gain, insomnia, psychomotor agitation, fatigue or loss of energy, feelings of worthlessness or guilt, diminished ability to think, concentrate – indecisiveness, recurrent thoughts of death (Schimelpfening, 2008). As Ratey ponders,
“…you need to have six to receive a diagnosis of depression. Say you can’t concentrate, can’t sleep, feel worthless, and aren’t interested in anything. That’s four. Technically, you aren’t depressed. What are you then? Just miserable? My point is, with any degree of depression, you need to snuff in out completely. And exercise is starting to be taken very seriously in this regard” (Ratey, 2008, p. 125).
If a perspective puts limitations on the way we are or are not to find bliss, then it seems there is an ideology at work preventing the individual from freely exploring what works best for them in lived experience. If we are not happy, shouldn’t we try everything that seems healthy to change the situation? Otherwise, the illusion we are trying to transcend through the ideology becomes the very illusion that keeps us from actually empowering ourselves to realize an objective sense of happiness.
Martial Arts: Higher Intensity for a Second Raise?
As we approach our peak heart rate, anywhere between 75 and 90 percent of our maximum, the body enters into a “full-fledged state of emergency” and the body’s response reflects a commensurate state of heightened activation (Ratey, 2008 p. 255). This marks the shift in metabolism between aerobic and anaerobic activity that causes our muscles to go into a state of hypoxia on account of the lack of oxygen in the bloodstream. As a result, the body begins to burn creatine and glycogen that is stored directly within the muscle tissue, creating a buildup of lactic acid that lends the familiar burning sensation we feel in our bodies as we exercise (Ibid). While physiologists have not established exactly the point at which this shift occurs, it seemed to correlate with subjective reports of when exertion becomes “somewhat hard.” One of the amazing differences between moderate and high-intensity exercise is that as you begin to peak and move into your anaerobic range, the pituitary gland in your brain naturally releases human growth hormone (HGH) – the same hormone that Barry Bonds was caught injecting. A kind of “fountain of youth,” HGH gives you that extra edge necessary to burn excess belly fat, improve muscle growth, and increase brain volume. In the brain, HGH balances neurotransmitter levels and increases production of all of the aforementioned growth factors, IGF-1 in particular, the “evolutionary linchpin tying together activity, fuel, and learning” (Ibid p. 256). In that the anaerobic threshold is where you confront yourself, pushing yourself beyond what you thought was possible, high intensity workouts toughen you up both physiologically and psychologically. It is here that Martial arts may play a special role, especially in the latter respect – further raising the fight or flight threshold as one learns to confront the physical reality of actual fight or flight scenarios while remaining calm inside. For those who are conscious of this underlying principle, even sports such as Muay Thai kickboxing, Brazilian Jiu Jitsu, Boxing or Mixed Martial Arts become opportunities for spiritual integration. To a point, the more reality based the martial art, the more the opportunity for integration. This is what creates the added sense of calm confidence of a seasoned martial artist who has gradually learned through experience to stay centered inside even in the face of being physically struck. In keeping with a “right exercise” approach to instruction, combat sports can provide the step by step exposure to physical conflict that allows the practice of mindfulness above all. By keeping with a constant level of subjective intensity parallel to minding one’s heart and breath rate while running, one gradually transcends the stress response without a sense of the level of stress increasing – bringing inner awareness and composure into ever greater levels of outer turbulence. This type of training can support the development of an almost unconditional fearless presence that if informed properly can lead to profound transformative effects in one’s emotional and interpersonal life. It is unfortunate that there are not more meditative types who are willing to take up these more sportive martial arts in order to bring this kind of spiritual practice to what can otherwise be abruptly rough and unnecessarily callous training. For those of us who would prefer not to fly overseas to climb mountains, attend weekend fitness bootcamps, or get punched, a study from the University of Bath, England, found that as little as adding a single 30 second burst of sprinting generated a sixfold increase in HGH, peaking two hours after the sprint (Ibid, p. 257).
The Recommended “Dose”
In conclusion, I would like to share suggestions from Spark for the recommended daily intake of exercise. While there is no firm answer on how much one should do, especially given various factors such as age, level of depression, medical history, body type, fitness level and so on, the basic idea is that some is better than none, but more is better (to a point). One study that based their workout regimen on public health recommendations found that high intensity (eight calories per pound of body weight in three to five sessions per week) and low-intensity (three calories per pound per week) groups cut their depression scores in half and by a third respectively. To approximate these weekly calorie burning prescriptions, simply multiply your body weight by eight to figure out how many calories you should be burning for a “high dose” week or by three for a lower “dosage.” If you weigh 150 pounds, that means you should burn 1200 calories per week. If you go to the gym and use a machine such as an elliptical, stair stepper, or exercise bike that tells you that you burned 200 calories in thirty minutes, that means you will want to schedule in six sessions to meet the high dose (Ratey, 2008, p. 138).
Ratey personally proscribes six days of jogging per week – four longer, moderate days (forty-five minutes to an hour) and two shorter higher intensity days (as little as twenty minutes) during which you may also choose to lift weights or some other kind of resistance training:
“Today…there’s no (longer a) need to forage and hunt to survive. Yet our genes are coded for this activity, and our brains are meant to direct it. Take that activity away, and you’re disrupting a delicate biological balance that has been fine-tuned over half a million years. Quite simply, we need to engage our endurance metabolism to keep our bodies and brains in optimum condition….In broad strokes, then, I think the best advice is to follow our ancestors’ routine: walk or jog every day, run a couple of times a week, and then go for the kill every now and then by sprinting” (Ratey, 2008, p. 248).
Wrist watches with strap on heart monitors are excellent supports in that they provide a constant reading of your heart rate so that you can stay at a desired pace and breath rate, whether low-intensity – 55 to 65 percent, moderate intensity – 65 to 75 percent or high intensity – 75 to 90 percent. To find your theoretical maximum heart rate, use a basic formula of 220 minus your age. So, if you are twenty-seven years old, your maximum heart rate would be 193, creating a target range between 125 and 145 beats per minute (BPM) for a moderate days workout.
References
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Carter, R. (1998). Mapping the Mind. : University of California Press.
Douillard, J. (2006). Living in the Zone – Body, Mind, and Sport: the Mind-Body Guide to Lifelong Health, Fitness, and Your Personal Best. Retrieved June 11, 2008, from http://www.enotalone.com/article/4609.html
Hay Group. (n.d.). Amygdala Hijack: Why being clever isn't everything. Retrieved June 11, 2008, from http://www.haygroup.com/tl/downloads/amygdala_hijack.pdf
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Panskepp, J. (2007). Can PLAY Diminish ADHD and Facilitate the Construction of the Social Brain? Retrieved May 25, 2008, from http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=2242642
Ratey, J. (2008). Spark: the Revolutionary New Science of Exercise and the Brain. : Little, Brown and Company.
Schimelpfening, N. (2008, January 17). Major Depressive Disorder - DSM-IV Criteria. Retrieved June 9, 2008, from http://depression.about.com/cs/diagnosis/a/mdd.htm
Solms, M., & Turnbull, O. (2002). The Brain and the Inner World. : Other Press.
Wikipedia. (2008, May 25). Hinayana. Retrieved June 11, 2008, from http://en.wikipedia.org/wiki/Hinayana
Wilber, K. (Ed.). (1999). Collected Works of Ken Wilber, Volume 2. : Shambhala.

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