Although Yoga has been steadily gaining popularity in the
west in recent years, it has yet to find the kind of validation and specificity
that scientists and researchers give to say, drugs, walking, or jogging. It may
be due to the ‘alternative therapy’/ ‘eastern mysticism’ tag that Yoga is
associated with, or even the kind of benefits that its supporters claim it
brings. It could also be the overall look and feel of the system – it appears
too 'docile' to western sensibilities, you just don’t seem to be doing much to
be getting the kind of benefits that Yogis claim they do – from greater overall
fitness, to stress relief, to positive effects in serious diseases like
diabetes or even cancer. But there is a growing group of researchers who have
been studying yoga, and there have been many studies done with rigor and
published in esteemed publications that prove that the effects of Yoga are not
placebo - they are for real, and that Yoga is a scientifically validated system
of mind-body intervention.
Professor Janice Kiecolt-Glaser from the Ohio State
University College of Medicine who also holds the title of Distinguished
University Professor, has done one of the largest and most comprehensive
studies on the effects of Yoga. It was published in one of the most prestigious
journals – The Journal of Oncology. The study done on 200 breast cancer
survivors demonstrated the following –
- Yoga
had beneficial impact on the inflammation, fatigue and mood of survivors
compared to a control group.
- It was
also found that the amount of yoga practice was correlated with the
outcome variables and that more yoga practice led to greater benefits.
In another study conducted on women with breast cancer
undergoing radiotherapy, lead by Dr. Lorenzo Cohen, Distinguished Clinical
Professor, and Director of the Integrative Medicine Program at The University
of Texas MD Anderson Cancer Center, it was found that –
- Yoga
improved the quality of life and physiological changes associated with
radiation therapy beyond the benefits of simple stretching exercises, and
- These
benefits appeared to have long-term durability.
Although done on breast cancer patients, the findings of
these studies can be applied on a much wider scale, for example, where people
are simply looking to improve their overall mental and physical health.
Reduction of inflammation alone is a big deal as it has been associated with
many diseases like type 2 diabetes, Alzheimer’s disease, arthritis and coronary
heart disease. On the other hand, Yoga’s effects in improving mood and reducing
fatigue is something that anyone would require today, especially the harried
business executive.
Another study done by Professor N. Gothe of Wayne State
University, Detroit, when she was a graduate student at the University of
Illinois at Urbana-Champaign examined the effects of an acute yoga exercise
session on cognitive performance compared to a similar session of aerobic
exercise. It was found that -
- A
20-minute session of Hatha yoga significantly improved the participants’
speed and accuracy on tests of working memory and inhibitory control.
These are the two measures of brain function that are
associated with the ability to maintain focus, and absorb, retain, and use new
information. The participants performed significantly better immediately after
a 20 minute session of yoga, compared to those who did a moderate-to-vigorous
aerobic exercise session of the same duration.
The biggest service that studies like these are doing is
debunking the thought that the benefits of yoga are placebo effects because
that is pretty much what most people who discredit yoga say. The outcome
variables measured in these studies - while some of them were self reports, a
lot of were based on the measurement of blood samples and other biological
measures. At the same time, comparison of control groups that did not do any
form of exercise, those that did aerobics or stretching, with those that did
yoga demonstrated that people who did yoga benefited more and the effects
appeared to be more enduring. So not only does yoga help but it helps in a way
that other exercises don’t.
- The
effects of yoga go beyond that of walking, jogging, or listening to music,
or any other activity.
- It
offers something special, almost magical, to the mind and the body -
research & experience both are getting clearer on this.
- The
benefits on our body, mind, behaviors and personal disposition
are not due to placebo effect, they are real and have been demonstrated
repeatedly in different studies.
Lastly, we have just mentioned a few studies and they don't tell you a whole lot about other great things that are being found in other studies. But we do have a lot more on the way, stay tuned!