Ashwagandha (Withania somnifera) is regarded as a 1st class adaptogenic tonic in one of the world's greatest herbal medical systems. Ashwagandha, also known as "Winter Cherry," improves the body's ability to maintain physical effort and helps the body adapt to various types of stress. Ashwagandha is the best herb for balancing “Vata” in the body. “Vata” governs all movement in the body, including the movement of nerve impulses throughout the nervous system. It is a nerve tonic, enhances physical as well as mental stamina. It can be given to growing children as well as to old age people.