Three bathing methods are the healthiest in winter.
Hot water bath-eliminate physical fatigue. Fatigue is related to the concentration of lactic acid in human blood. Taking a warm bath can speed up metabolism, improve the speed of decomposing lactic acid and eliminate fatigue. Taking a bath for 20 minutes is equivalent to jogging 500 meters, so taking a bath also has the effect of fitness. However, the temperature of warm water bath is not as high as possible, otherwise excessive sweating will easily lead to collapse, and the water temperature should be controlled at around 38℃.
Cold water bath-enhance cold resistance. Cold water bath can improve the cold resistance of human body and exercise the elasticity of blood vessels, which is a "vascular gymnastics". Need to be reminded that cold water bath has an adaptation process. If you take a hot bath all the time and suddenly take a cold bath, it will not only be useless, but also get sick.
Hot and cold water bath-keep blood vessels elastic. Hot and cold water bath can relax blood vessels, expand with heat and contract with cold, and maintain blood vessel elasticity, which is very beneficial to maintain normal blood pressure and prevent cardiovascular diseases.