Panax ginseng can boost the Defense mechanism of body, and therefore increase resistance to problem. It may increase physical stamina, and stimulate the appetite, which can be especially useful for the elderly. It may improve the memory, and several studies have indicated that American ginseng reduces total blood cholesterol levels. It has an anti-clotting action that may reduce the risk of heart attacks. American ginseng may also be used by High blood sugars to reduce blood sugar levels, though not before consulting a qualified healthcare professional.