Ashwagandha is an adrenal tonic that promotes energy and vitality, and protects the body from the negative effects of stress. As a calming adaptogen, it is useful for chronic anxiety, insomnia, anxiety-related hypertension, chronic fatigue syndrome and nervous distress. It is helpful in the case of male infertility, having been shown to improve sperm motility, and helps with anxiety-related impotence. For both sexes, it helps to balance hormones and increase sexual vitality.