Consumption cycle body physical fatigue, first appeared in the blood circulation of the foot is adverse, end product of metabolism, calcium salt, lactic acid micro crystals deposited material. Athletes after day strenuous exercise, per kilogram of blood contains, on average 30 mg of lactic acid. With 43 degrees of water soak double foot after 30 minutes, blood examination, declined by about 5 mg, after a period of time of foot, blood lactic acid decreased about 20 mg and returned to almost do not feel tired blood lactate levels. Visible, hot water foot massage is the most simple and effective way to eliminate body fatigue.