Ashwaganda has been used as an Indian medicine for thousands of years. In addition to promoting a general sense of well-being, it's said to help clear your mind, treat hypertension, treat severe stress and nervous exhaustion. The bonus here is that this herb is good enough to be sipped in the morning and won't send you into snoozeland halfway though the workday. LiveStrong thinks it might be the cure for our stressful lifestyles.