Normalizer, energizer, and stress reducer. It appears to be of benefit for both low and high blood pressure, energizes those suffering from fatigue, and helps calm those prone to stress or nervousness. It improves mental clarity and memory, enhancing physical stamina, and bolstering the immune system. Ginseng may lower blood sugar levels in patients with type 2 diabetes, both at fasting states and after eating. Ginseng taken by mouth may lower the risk of being affected by various cancers, especially if ginseng powder or extract is used. Reported to improve pulmonary function and exercise capacity in patients with Chronic obstructive pulmonary disease (COPD).