People's experience with stevia testifies to its ability to restore a person strength after a nervous and physical exhaustion. Due to synergism and potentiation of the components contained in the leaves of stevia, its use eliminates the fatigue and improves dynamic performance muscle (D. Kinghorn, 1987).

All this makes the stevia indispensable product for athletes and people engaged in heavy physical or strenuous mental work. Stevia slows the aging process.