BOOK REVIEW: The Harvard Medical School Guide to Tai Chi by Peter M. Wayne & Mark Fuerst

The Harvard Medical School Guide to Tai Chi: 12 Weeks to a Healthy Body, Strong Heart, and Sharp MindThe Harvard Medical School Guide to Tai Chi: 12 Weeks to a Healthy Body, Strong Heart, and Sharp Mind by Peter Wayne
My rating: 5 of 5 stars

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This book provides an overview (and a laymen-friendly literature review) of the scientific findings about tai chi, and it helps a beginner get started in his / her own practice. (Tai chi, short for tai chi chuan, is a Chinese martial art that is called an internal–or soft–style.)

The authors achieve an impressive tightrope act. And they manage to do it in a way that reads sincerely, while at the same time providing useful information for all readers. Often books on the science of Eastern health-enhancing activities (e.g. tai chi, chi gong, or yoga)–even if they are positive on the results of such activities—take digs at people’s beliefs about ideas like chi, prana, meridians, or chakra as the authors attempt to distance themselves from such beliefs. On the other hand, books that cater to the spiritually inclined—even when they are couched in scientific terms—may resort to third-hand anecdotes about the supernatural powers of some ancient master or report methodological train wrecks that support their views alongside sound studies, as long as the latter don’t present any evidence contrary to their belief system. In short, such books often talk in scientific lingo while showing a complete lack of understanding of the scientific method. In this book, Wayne manages to navigate these rocky shores because he’s both a scientist and a longtime tai chi practitioner who genuinely accepts that there may be more at work in the practice than science fully understands. Thus, he knows the importance of testable hypotheses and when a study needs to be validated by more a robust follow-up study, but he also reports on the traditional beliefs and isn’t adverse to writing about studies evaluating the benefits of spirituality (note: showing that being spiritual has benefits doesn’t mean that the benefits result from anything spiritual or supernatural.)

The book has 14 chapters divided into three parts. The first part introduces the reader to tai chi, describes the dimensions along which tai chi has been shown to offer benefits (the authors call these “the 8 active ingredients of Tai Chi,” relating them to pharmacological medicines), and explains how tai chi can be simplified for beginners (even the short form sequences take a while to be memorized—let alone building any grasp of the intricacies of said forms.) The second part consists of six chapters that report the findings of studies on the health effects of tai chi, as well as discussing the possible mechanisms of those benefits. The topics discussed in this section include: increased balance, bone density, pain mitigation, cardiovascular health, mental performance, psychological well-being, and sleep quality. The book’s last part suggests ways in which the reader can build a tai chi practice. The five chapters in this section deal with the interactive practices of tai chi (tai chi isn’t just the solo forms that you’ve seen elderly people do in the park), integrating tai chi with other health and fitness practices, the potential for practicing tai chi at work, the role of tai chi in creative practices, and tai chi as a practice of lifelong learning (this last chapter gives beginners tips about how to start a practice.) There is also an afterword about how tai chi might play a part in building improved health and well-being in the present era.

I found the book to be well-organized to achieve its objective. It’s packed with food for thought. Neophytes will find a lot of benefit in this book, but I suspect even advanced practitioners can glean insights—particularly if said advanced practitioner hasn’t been reading up on the scientific findings. Humor, quotes, and stories are used to lighten the tone and illustrate key points. There are some photos and other graphics where needed (mostly in chapter 3), but they are relatively sparse for a book on a practice like tai chi. (That’s not a complaint. I think there are far too many attempts to teach movement arts through books—an impossible task—and not enough effort put into conveying the kind of ancillary information that is transmissible in book form.)

I’d recommend this book for anyone who’s interested in knowing more about the health benefits of tai chi, and moving beyond the platitudes often heard but seldom evaluated.

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DAILY PHOTO: Tai Chi in a Natural Setting

Taken in September of 2014 in Bangkok

Taken in September of 2014 in Bangkok

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Paleo-Stressing: Acute v. Chronic Stress

"What happened to the good ole days when I ate you people--not lived in your cages?"

“What happened to the good ole days when I ate you people–not lived in your cages?”

Paleolithic dieting is all the rage these days. I’m no expert on the paleo-diet, but–as I understand it–this refers to the practice of eating the foods consumed by our pre-agrarian ancestors. The idea is that if one consumes the foods that our species is evolutionarily-optimized to eating, one will be healthier.  Whether one believes in the merits of the paleo-diet or not on the whole, it’s hard to argue that one wouldn’t be better off eating less highly-processed and highly-refined foods and more things that look like food at a glance.

 

Our diet isn’t all that has changed since the days of our pre-agrarian ancestors. Modernity has brought with it an entirely new way of experiencing stress. Eliminating or reducing stress is a common topic of discussion, but not all stress is created equal. There’s a necessary form of stress, a stress that makes one better, stronger, faster, and smarter. We don’t want to willy-nilly eliminate stress; we want to reduce the wrong type of stress.

 

Our ancestors—like animals–experienced brief periods of intense stress (e.g. saber-tooth tiger attacks), followed by longer periods in which they were free of deadlines, carpools, and after-school activities. Now, no one likes to have a saber-tooth tiger stalking them. It’s unpleasant. Modern humanity has gone to great lengths to eliminate those short bursts of terror, but not without cost. (If you don’t believe me read Robert Sapolsky’s Why Zebras Don’t Get Ulcers.)

 

Whether or not you believe that eliminating acute instances of terrifying stress is bad for mankind, it’s hard to argue that modernity’s leveling process didn’t eliminate stress, but instead resulted in a chronic stress on a smaller scale. People today have impossibly long daily to-do lists, and they have to accept trade-offs between work, family, and personal development.

 

It’s true that you don’t get eaten by a giant cat when you drop the ball, but life is so packed diverse events that one may feel like one is dropping some ball constantly. If your boss thinks you’re a model employee, then your kids are probably going to need therapy. If you have a contented home life, your boss may have his or her eyes open for someone who can give the firm consistently 70+ hour work weeks. If you feel you’re doing alright on both the work and family front, your body and / or mind is probably a train wreck.

 

Chronic [mini] stress may feel better than acute [catastrophic] stress, but it takes its tolls in various ways. First, with our sympathetic nervous system (fight-or-flight reaction) constantly engaged our body’s power to heal itself is reduced. When the parasympathetic nervous system is engaged, the body devotes resources to long-term goals like getting healthier, but in stress mode activities not relevant to immediate survival shut down. This is a great system if you have periodic life and death stress, but is not so good if you’re under constant stress.

 

Second, chronic stress reduces sleep, and sleep is essential to one’s mental and physical well-being. There are a wide variety of symptoms associated with sleep deprivation such as forgetfulness, decreased concentration, decreased alertness, reduced reasoning ability, diminished problem-solving capacity, and depression—all of which can diminish our physical health through accidents, ailments, suicide attempts, and lack of energy for exercise.

 

Third, chronic stress can make one fat, with all the health issues that result. Some people use food as a coping mechanism. Other people eat too fast or choose their food poorly because of time constraints or because they are not mindful of eating as their monkey minds churn at a mile a minute. Then there is the more convoluted and complex issue of cortisol–a hormone released under stress that is linked to weight gain in at least some cases. Even if you don’t have a problem on the calorie intake side, the stressed individual may not do so well on the calorie burning side—either because of a lack of time to exercise or a lack of energy.

 

Modern humans are uniquely suited to chronic stress because we are the only species that achieves the same physiological stress response by remembering and obsessing about a stressful event as experiencing it. Abandoning the modern approach to living isn’t an option most are willing to entertain; but there are ways to combat chronic stress.

 

Move – Meditate – Mindfully Breath: The bad news is you’ve got to shoehorn these activities into your schedule daily (or at least several times a week.) The good news is that they don’t need to take up a lot of your day. There are a number of systems that address all three components in one handy package such as Qi Gong, Yoga, and some martial arts. I don’t think it matters so much which one chooses as how one goes about one’s practice.

 

Movement strengthens and strategically stresses the body, but it also increases one’s bodily awareness so that one becomes aware of how stress is manifesting itself in one’s body. Meditation teaches one how to live in the present moment, and it trains one to recognize the seeds of negative thought and emotion earlier so that one can counter-act them. Obviously, breathing is essential to life, but learning to be aware of one’s breathing patterns and to “manually override” the breath patterns associated with harmful emotional states is a beneficial skill.

 

Massage / Bodywork: Whether self-administered or other-administered (the latter allowing greater distressing–particularly if the masseuse is skilled) massage is an activity, like movement, that can help one become aware of where one is physically holding one’s stress. These physical manifestations of stress can exacerbate the whole experience of stress. One should take time periodically to have bodywork done. A day rarely goes by in which I don’t work on my own neck, shoulders, head, or face, and I occasionally get professional Thai Yoga Bodywork done.

 

The Places that Scare You: Force yourself to go someplace (not necessarily literally a “place”) that scares you once in a while. This needn’t be skydiving or hand-gliding—but it could be. It may be a martial arts class in which one has to put on the gloves occasionally and go at it. It may be joining Tostmasters and having to give a speech in front of a crowd. It may be traveling to some backwater where you don’t know the language, but you want to learn. This is a very personal issue. (i.e. A Type-A personality he-man may not find that skydiving is outside his comfort zone. If so, sorry, skydiving doesn’t count, he may need to learn ballroom dancing, or something else that truly takes him outside being comfortable.) KEY POINT: The problem with hiding from all stressors is that it doesn’t result in a stress-free life, what happens is that smaller and smaller stressors loom bigger and bigger in one’s mind. Which brings us to…

 

Perspective:  One must put life’s challenges in perspective. Each person’s problems are important to them, and I don’t want to diminish anyone’s problems, but—come on—you’re not going to be eaten by a freaking saber-tooth tiger.

Tradition v. Modernity in Fitness and Movement Arts

 

TheScienceofYoga_BroadOne of my favorite professors (and I had a lot of them) was in the Religious Studies department of Indiana University in Indianapolis (IUPUI.) Among the lessons he taught us were the various forms of fallacious reasoning applicable to the discipline. He did so in a way that was both erudite and folksy, often in a humorous way.

 

 

 

While I don’t remember the formal names he gave these concepts or their technical definitions, I do remember the more colorful variations. One was the “firstist-is-bestist” fallacy in which it’s assumed that the old ways are inherently superior because bad ideas die out, and young ideas are at least as likely to be crap as not. This is sometimes called “appeal to tradition.” Over a sufficiently long time horizon this assumption may prove true (i.e. the time horizon beyond which Keynes warned we’d all be dead), but we know that wrong ideas can live on for centuries.

 

 

 

Another was the “outhouse” fallacy, which says that because pre-modern man didn’t have indoor plumbing they must have been complete idiots, and we should assume newer is better. This is sometimes called the “appeal to modernity.”  While there is some advantage to having access to the compiled knowledge of history, this doesn’t keep people from coming up with idiotic ideas regularly.

 

 

 

What made me think about these conflicting fallacies is that I’ve been reading a lot about the science of yoga–and other systems of movement–lately. Specifically, I was reading The Science of Yoga by William Broad. During the 20th century, yoga went from not giving a whit about science to trying to show that it wasn’t at all at odds with science–if not that it was grounded in science. (Note: this statement could be applied to many of the old ways—e.g. religions—which sought to prove themselves consistent with scientific evidence out of fear that–in the age of rationality–to be inconsistent with scientific observation would be death to old beliefs.) While the hucksters and con men seeking to bilk people out of money through shows of yoga “magic” have lost power (though some still exist and prey on the gullible regularly), this isn’t to say that science has yet won the day entirely.

 

 

 

Chapter two of Broad’s book discusses the findings of the scientific community on whether yoga has any merit as aerobic exercise. (The consensus is that it doesn’t.) Now, one would think that the whole yoga community would be pleased that academia has for the most part shown that yoga has a range of positive benefits that make it a worthwhile endeavor when practiced safely and conscientiously, but some have been unwilling to accept that yoga isn’t excellent cardio on top of all its unambiguous benefits. The established consensus is being ignored and a single seriously flawed study (small sample size, no control group, and—while peer-reviewed—the author was the journal editor) is cited, that one—of course—suggests that yoga meets all one’s cardio needs.

 

 

 

It’s easy to follow the incentives. For example, if one runs a yoga studio one would like to be able to say that yoga is a panacea for all of a person’s health needs. People are busy and lazy, and if someone else can sell them a silver bullet then they’ll lose business.  If one gives the matter thought, it becomes hard to imagine an exercise panacea. Consider a list of health goals that includes reduced stress, improved balance, greater flexibility, more strength, and enhanced cardiovascular capacity. One should see that some of these goals are at odds with each other. The first three goals—at which yoga excels–require holding a static position for a time while engaging in deep and controlled breathing. The fourth goal, strength enhancement, (which yoga achieves only in a limited way) requires repeated alternation of stressing and relaxing a muscle. And cardio, the fifth goal,–for which yoga is less than helpful–requires rapid and sustained motion so as to cause the heart to be stressed.

 

 

 

Of course, individuals have tried to rectify yoga’s cardio deficit by creating yoga styles that add speed and repetition. If one does five sun salutations per minute for 45 minutes, then—congratulations–you are now getting cardio and strength building. Unfortunately, you are now losing out on the first three goals of stress reduction, balance enhancement, and flexibility improvement. Those three things requiring holding poses while engaging in relaxed and controlled breathing. So the question is whether one is happy having sacrificed the benefits yoga does better than everything else in a desire to have yoga gain benefits that other exercise systems probably still do better.

 

 

 

The old systems of movement and exercise, be it yoga or chi kung, have shown themselves to have merit. However, the mechanisms by which that merit is achieved (or the nature of the merit) are often not what the system’s mythology suggests. There’s no need to fear science, but one should be ready to embrace what is shown true and set aside what is shown to be false.

 

 

 

On the other hand, this modern idea that we can have our cake and eat it too by throwing together disparate systems, which often have conflicting goals and modes of operation, needs to be reevaluated. All of these fads have been created where someone crams together tai chi and yoga or yoga and jazz dance or Zen meditation and parkour and they think they have the ultimate system based on a more complete picture of modernity, and what they’ve got is a muddle.

 

 

 

What we need is the tested merit of tradition without its voodoo, and the compiled knowledge of modernity without its hubris.

 

Chi: The Power of What Isn’t

Every morning I start my day with chi kung (a.k.a. qi gong), and many days I do tai chi (tai qi.) For those who are unfamiliar, chi is usually defined as “life force” or “life energy.” However, defining chi is neither simple nor will one find a consensus agreement. Some say chi is  “breath,” at which point its existence becomes a much less controversial, but also less explicative, concept. Others would say that chi is much more broadly dispersed than the “living” so “life force” is an understated definition.

Chi Kung are exercises combining breathing, movement, meditation, visualization, and self-massage that are used to keep one healthy. Because yoga also contains these components (e.g. breathing, movement, and meditation; though with very different specifics) some have even been known to call chi kung “Taoist yoga.” The idea behind these exercises is that chi is lost through living (some activities more than others), and can become blocked in the channels through which it is believed to move. Various exercises are used to replenish and ensure healthy circulation of the chi. Tai chi is a series of martial arts forms that are also considered to have the effect of replenishing and / or enhancing chi.

Two questions may leap to mind, especially among those who know me as a skeptic. First, do you believe in chi–despite the lack of evidence that it exists? (When I mention this lack of evidence, I am obviously not defining chi as breath or bodily fluids, in which case the most rabid skeptic would have to acknowledge its existence. However, then an entirely different set of questions is raised about the vast and complicated nature of chi kung exercises needed to circulate oxygen, which travels through blood vessels and not through channels or meridians. In other words, there’s no reason not to abandon a lot of the Traditional Chinese Medicine (TCM) / Taoist conceptions of health if one considers a narrow definition of chi.) Second, if you don’t have any reason to believe that chi is a real thing, why bother with the exercises?

First, no, I don’t believe in chi as a substance or physical entity in the way that your average Taoist priest does. I don’t mock or ridicule those who do, and I acknowledge it could always turn out that they were right and I was wrong and that my current state of ignorance combined with an incorrect deference to Occam’s Razor led me astray.

However, I have a pretty high standard for believing a person, place, or thing exists. I need to be able to observe it.  If I can’t perceive it directly, but there is some indirect sign it exists, then that indirect sign needs to be the simplest possible explanation I can imagine given my current state of knowledge. (Yes, I realize that Occam’s Razor isn’t a law, it can always be that an unlikely explanation is the correct explanation. I also know the raft of indirect signs of chi, and, yes, I’m saying I can imagine simpler explanations than an energy source that is immeasurable but powerful enough have bodily effects.) While I don’t believe in chi (or meridians, or the yet undiscovered organ called the “triple heater”) as physical things, I do believe in conceptual chi which is an object of visualization.

Moving on to the second question, I practice these exercises because they make me healthier.

This, of course, raises another question, “How can these exercises be effective if chi is not real?”

Now I have to go Socratic on my hypothetical questioner. The Socratic dialogue goes like this:

S: Have you ever been to a scary movie?

A: Of course, I have. What kind of a troll has never seen a scary movie?

S: I’m Socrates. I’ll ask the damned questions around here, thank you very kindly.

So while you were watching said movies, did you ever get startled? That is, did your pulse ever pound a bit harder; did you ever take a gasping breath; did your hands ever grip the armrest with white knuckles; or did you ever get butterflies in your stomach?

A: Of course, that’s part of the horror movie watching experience.

S: So, then, you were under the impression that the events you were watching were actually happening, and that the killer might come out into the theater after you at any moment?

A: No, of course not. Don’t be absurd!

S: And yet this thing that was not real–that was just symbolic or conceptual–had actual physiological effects?

[At this point Socrates breaks into his superiority dance.]

I think visualizing chi flow has positive benefits both mentally and physically. The mental benefits may be clear. The physical benefits result from putting oneself in the moment and conducting activities (deep breathing and movement) that help one de-stress. This process of de-stressing helps one to be healthier. Does it matter that one does the exercises as they have been handed down from ancient China? Probably not, but I believe that trial and error (even without complete information about anatomy and physiology) yield some impressive results. Of course, there are many other systems (e.g. yoga) that can work equal wonders using an approach that is quite different in its detail. (I also don’t believe in Chakras, but can imagine great benefits from behaving as if they exist.)

MindOverMedicineI just started reading a book by a medical doctor named Lissa Rankin. Rankin’s book, entitled Mind Over Medicine, presents evidence from a large body of scientific literature suggesting the mind often plays a major role in wellness by way of mechanisms that aren’t yet fully understood, but which defy the traditional view of Western medicine.

Rankin was intrigued by the vast number of anecdotal cases of what doctors call “spontaneous remissions.” Spontaneous remissions are when a patient becomes healthy in a way that defies explanation (i.e. they had no treatment, they had insufficient treatment, and they had an illness for with the body’s immune system is normally believed incapable of doing the job on its own.) She wasn’t satisfied with these one-off stories involving placebos, fake surgeries, busted radiology equipment, faith healing, etc, but rather wanted to see what the scientific literature contained by way of scientific double-blind studies on the subject.

She found there was evidence to support mind over matter when it came to illness, and that there was a fledgling explanatory literature. She also learned that while there was a large database of spontaneous remissions, there had not yet been an attempt to determine whether there were common characteristics of those who showed the “placebo effect” (getting well while being in the placebo group of a double-blind study) or other spontaneous remissions.

My point is that there is good reason for skeptics to consider that there may be a lot more to health and well-being than our current paradigm suggests.

DAILY PHOTO: Tai Chi Sculpture

Taken in Montreal in March of 2011

Taken in Montreal in March of 2011

Snake Creeps Down?