Ashwagandha ( Withania somnifera ) is an ancient Indian medicinal plant, widely used in ayurvedic treatment. This under shrub is Pungent ( Katu), Bitter ( Tikta) and Kashaya ( Astrigent ) in Rasa ( taste ) , light in guna , hence gets easily digested and provides strength to the body due to its balya ( nourishing) , vata- kapha hara, rasayana ( rejuvinating ), sukrala ( spermatogenic) , vajikarana (aphrodisiac) karma . It is beneficial is soothing the mind and sense organs hence is prescribed by doctors in anxiety, sleep disorders, depression etc.