Panax ginseng has long been utilized to assist the body in adapting to physical and emotional stress. During prolonged exercise, Panax ginseng promotes endurance and stamina to support energy production. Panax ginseng also encourages adrenal gland health in times of occasional stress by maintaining healthy levels of certain adrenal hormones, most notably, corticosterone. This versatile herb has shown potential support for testosterone and spermatozoa levels in animal studies, and has also shown support for male reproductive health in human studies. In addition, Panax ginseng promotes memory and learning, and nutritionally supports immune function and cardiovascular health.