ginseng is the most famous chinese herb. it is the most widely recognized plant used in traditional medicine. various forms of ginseng have been used in medicine for more than 7000 years. several species grow around the world, and though some are preferred for specific benefits, all are considered to have similar properties as an effective general rejuvenator. the name panax is derived from the greek word panacea meaning, "all healing" and the benefits of ginseng are recognized as such. ginseng is commonly used as an adaptogen, meaning it normalizes physical functioning depending on what the individual needs (for example, it will lower high blood pressure, but raise low blood pressure). it is also used to reduce the effects of stress, improve performance, boost energy levels, enhance memory, and stimulate the immune system. oriental medicine has deemed ginseng a necessary element in all their best prescriptions, and regards it as prevention and a cure. it is said to remove both mental and bodily fatigue, cure pulmonary complaints, dissolve tumors and reduce the effects of age.