Ashwagandha is an ancient medicinal herb. Ashwagandha is Sanskrit for smell of the horse, which refers to both its unique smell and ability to increase strength.It has been shown to lower blood sugar levels.A compound in ashwagandha helps induce apoptosis, which is the programmed death of cancer cells. It also reduces cortisol which is known as a stress hormone given that your adrenal glands release it in response to stress, as well as when your blood sugar levels get too low. Can boost testosterone and increase fertility in men.