The Science of Yoga summary ´ eBook ePUB or Kindle PDF

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The Science of Yoga summary ´ eBook, ePUB or Kindle PDF È A lead science writer for The New York Times—and lifelong yoga practitioner—examines centuries of history and research to scrutinize the claims made about yoga for health fitness emotional wellbeing sex weight loss healing and creativity He reveals what is real andUstlers He takes the reader on a whirlwind tour of unknown yoga that goes from old archives in Calcutta to world capitals of medical research from storied ashrams to spotless laboratories from sweaty yoga studios with master teachers to the cozy offices of yoga healers In the process he shatters myths lays out unexpected benefits and offers a compelling vision of how the discipline can be improved. A surprising number of studies have documented benefits of yoga in reducing depression fixing muscle and back problems and possibly improving sex In this well documented book science journalist William Broad discusses these benefits as well as a number of mistaken beliefs about the benefits of yoga possible sources of injury and some history of the discipline The kind of yoga Broad is referring to is basically postural yoga; the word yoga can have broader and spiritual implications There are now so many forms of postural yoga that generalizations can be hard to make Texts on yoga go back to medieval times However the discipline as we know it in the west basically dates from the movement for Indian independence when there was a need emphasize Indian cultural identity Some of major gurus such as Tirumali Krishnamacharya were working in environments where western exercise techniues were also known so assuming a purely Indian origin of postural yoga may be unwarranted The medieval texts such as the Hatha Yoga Pradipika were considerably interested in sex than is perhaps typical of modern yoga The main misconceptions regarding yoga regard its benefits as aerobic exercise and th effects of associated breathing techniues on the oxygenation of the blood In general yoga reduces rather than increases ones heart rate Even those forms that do raise your heart rate are not impressive forms of aerobic exercise as compared with running or swimming Therefore yoga is not the most effective way to burn calories; however if ones goal is to lose weight yoga may well still be beneficial because its effect on your mood may reduce your food consumption Yoga is certainly good for ones flexibility Yogic breathing does effect the chemistry of your blood but the effects are on the carbon dioxide levels in the blood not the oxygen levels Carbon dioxide levels can vary considerably while oxygen concentrations are surprisingly stable Yoga does have some risks of injury Aside from the sorts of injuries to muscles tendons and so forth that you might expect a drastic if happily rare possibility is the possibility of a stroke The risk of stroke arises from postures that injure the vertebral arteries in such a fashion that can create a blood clot which can subseuently move into the brain or other injuries to these arteries that reduce blood flow to the brain Headstands seem to be a particular problem in this regard The risks can be reduced by modifying a headstand so that less weight is placed on the next; other postures might be modified so as to avoid extreme bending of the neck Broad notes that there is no official certification of yoga instructors and that instructors of different forms of yoga vary considerably in how much experience they need to receive the certification associated with a particular form of yoga Therefore many instructors may not be aware of the risks Ironically I noticed that some of the postures that Broad noted as having some risks turned up in later chapters as having benefits for such conditions as damage to the rotor cuff muscles in ones shoulders Yoga does appear to have some benefits in dealing with clinical depression Yoga affects level of the neurotransmitter gamma aminobutyric acid GABACertain poses such as those headstands can affect the autonomic nervous system which affects ones moods Broad sees the possibility of yoga being used to treat depression As a cynic I can't help but think that the inability to patent yoga is rather a disadvantage to encouraging its widespread use for this malady In the raciest chapter Divine Sex Broad cites studies that show some yoga postures can increase the testostorone levels in both men and women; higher testostorone levels are associated with higher levels of sexual satisfaction The effect seems to benefit women with problems with sexual satisfaction Yoga also seems for a lucky minority to help bring about a prolonged orgasmic state without physical stimulation Possibly the effect results from keeping the activity in recently evolved portions of the brain to a minimum allowing the sensations from the early evolved portions of the brain which includes sexual responses to be apparent I found the chapter on yoga and creativity the least satisfactory as the amount of scientific study in this area seems to be nearly nonexistent Possibly yoga allows the right hemisphere of the brain associated with creativity to not be shouted down by the analytical left hemisphere The examples of the poetry written as a result of yoga did nothing to make me wish to encourage the wide spread adoption of this practice Overall I enjoyed the book The book includes some illustrations of the poses a chronology a set of brief biographies of the persons mentioned in the book a list of recommended reading as well as detailed end notes I would caution that many of the scientific studies cited in the text have small sample sizes so the possibility of significant effects due to sampling error cannot be excluded

read É eBook, ePUB or Kindle PDF Î William J. Broad

En wealth of discovery drama and surprising fact to cut through the fog that surrounds contemporary yoga and to show for the first time what is uplifting and beneficial and what is delusional flaky and dangerous At heart it illuminates the risks and rewardsBroad describes yoga as a burgeoning global industry that attracts not only curious scientists but millions of true believers and charismatic h. Yoga books are mostly two categories colorful instruction manuals or text based on ancient or modern philosophy Personal anecdotal narratives abound but what about something to analyze the objective experiences Naturally yoga is not about objective experiences it is largely a personal experience outside of pure fitness realm Yet given how yoga is being marketed would it be worthwhile to uantify the things that we can objectively measure such as various health acclaims measurable through biomedical measures Subjecting yoga to such examination does not negate its other aims or claims it simply asks for the evidences where evidences are producible and potentially information Very few books are evidence based or scientifically based But this is a serious book aiming exactly at that to search and examine the body of evidences on various yoga claims The author also makes valuable judgment of the uality of the studies such as a controlled double blinded large sample study with clear objectives and measurements is better than a ex post observational study with a few individuals and vague uestionnaires He pointed out where science can have some answer no yoga does not increase your metabolism it actually lowers it but also the area we still don't have a clear picture such as impact on creativity The most shocking part is about yoga injuries Injuries in yoga is a taboo issue; it is something the sufferers often have to endure silently without uestioning the basic premises of human physiology largely because yoga is supposedly to be healing and safe for everyone In addition as yoga is marketed toward the urban affluents such as in cities like NYC DC etc yoga is combined with a keen direction toward aesthetics and fitness No wonder the competitive spirit is sold along with yoga in such settings Yoga injury is just another sport injury people push too hard on their bodies something goes wrong just like anything else The label of yoga is not going to prevent us from tearing our muscles or tendons or pushing our bones or joints out of their own limitsThis is a very well researched book for anyone interested in yoga

William J. Broad Î 8 read

The Science of YogaA lead science writer for The New York Times and lifelong yoga practitioner examines centuries of history and research to scrutinize the claims made about yoga for health fitness emotional wellbeing sex weight loss healing and creativity He reveals what is real and what is illusory in the process exposing moves that can harm or even kill Five years in the making The Science of Yoga draws on a hidd. This is a good introduction book to the science of yoga related activities I recommend yoga enthusiasts to read it This book is not perfect maybe far from it but it gives you precautions about yoga activities Yes there are discussions about benefits of yoga but I believe if you have heard the benefits from many other sources In my opinion the heart of this book is on risk parts as we can read on Fit Perfection Risk of Injury and Healing chapters Those chapters have a lot of research materials that we can check later Unfortunately Divine Sex Chapter and Muse Chapter on later reward parts of the book are not researched as deep as previous chapters Especially Divine Sex filled with information that unrelated to Yoga directly and then without satisfying conclusion for me author just end the chapterI like the epilogue and viewing current state early 21st ce as in Yoga 25 phase I have similar feeling could not define the idea of phase Thanks to this book I have one less irritating thoughtBut even with the flaws I still rate this book as 5 star for the warning value Too many cases even from my personal experience where yogi and yogini focus on the reward blindly without considering the risks or following every yoga lessonteaching without proper criticized mind This book can open your mind with modern yoga world