As an adaptogen, Schisandra is a potent general tonic, decreasing fatigue, enhancing physical performance, and promoting endurance. The berry counters stress by reducing the levels of stress hormones in the blood. Additionally, Schisandra offers great benefits for athletes. In human studies Schisandra berry and its extracts have improved performance among long distance runners, skiers and gymnasts. For this reason Schisandra berry is often found on the training tables of Chinese athletes.