When scientists began to investigate yoga at the physical level,they found that it had a tremendous influence on the physical body. The yoga postures harmonized the endocrine glands.The practice of pranayama created a balance in the nervous system. The effects of asana and pranyama on the different organs of the body were also investigated . Research was done on the effect of pranatyama on the behaviour of the hypothalamus and the effects of various hatha yoga practices on mental, psychological and emotional problems. Experiments were drawn about the possibility of reviving insulin production in the physical body of diabetics. Yoga postures were determined for discprolapse, which is a widespread problem.
Scientists have also investigated and assessed tha value of meditation .It was once thought that meditation was therefore totally misunderstood . Scientists, psychologists and medical doctors have measured the brainwaves during deep meditation and found a predominance of alpha waves, which arise during the state of relaxation . Alpha rhythms automatically reduce the blood pressure of a person suffering from hypertension .Drugs are therefore not necessary . Since high blood pressure is a consequecnce of hypertension ,it can only be balanced by bringing tha aspha rhythm into action, and this can be achieved thruogh tha practice of meditation .
Meditation is also being used for the reformation of character, personality and mind. Sociologists and criminologists have clearly started that the practices of yoga bring a tangible and substantial change in the behaviour patterns of delinquents,criminals, alcoholics and durg addicts.
Yoga has been internationally accepted as a therapeutic science,and more and more people are taking it up.However ,compared to the great population of the world .teachers are still very few . Consequently there are many people in the world who do not know yoga .It is therefore necssary for us tosee that more and more people become aware of the benefits of yoga .In fact, one of the greatest services that we can do for mankind today is to expose it to the practices of yoga.
It is not only for health that people need yoga, Everyone is trying to express themselves betters, whether a painter,carpenter,businessman,tradesman or ahopkeeper.It is important that yoga bocomes one of the more recognized aids for developing this creative intelligence.
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