Sahya's Ashwagandha particularly its root powder, has been used for centuries in Traditional Indian Medicine. There is insufficient evidence that it has any medicinal effects. Dietary Supplements containing ashwagandha are marketed in the U.S., Ashwagandha is cultivated in many of the drier regions of India. It is also found in Nepal, China and Yemen. Ashwagandha is also used as an "adaptogen" to help the body cope with daily stress, and as a general tonic. Some people also use ashwagandha for improving thinking ability, decreasing pain and swelling and preventing the effects of aging.