The best temperature of the bath water temperature is 35-40 ℃, due to temperature differences, summer bath water temperature is 35 ℃ to 37 ℃, winter in 38 to 40 ℃ is most appropriate, bath water temperature is too high or too low will have an impact on health. 1. Water temperature is too high: water temperature is too high will lead to skin damage, so that the loss of skin moisture, exacerbate skin dryness, resulting in itchy skin; water temperature is too hot easily make the whole body capillary expansion, so that the drop in blood pressure, there may be symptoms of oxygen deprivation, dizziness, and even nausea, vomiting and other adverse reactions. Quickly get out of the high-temperature environment after bathing, so as to avoid defecation. 2. Water temperature is too low: water temperature is too low will feel the cold, may produce a stress reaction, resulting in muscle contraction, nerve tension, will let the blood vessel contraction, back to the heart of a large increase in blood volume, easy to cause damage to the cardiovascular and cerebral vascular; cold water bathing can not alleviate the fatigue, but also prone to cause colds. Usually bath control temperature, do not overheat or too cold, so as not to have an impact on health.