In general, it is recommended to take a bath after 2 hours after a meal. This has a positive impact on promoting the normal functioning of the digestive system and maintaining the healthy development of the human body. Because the human body in the process of bathing, the brain nervous system tissue with body temperature changes, will direct blood to the skin, directly affecting the blood oxygen supply needs of the stomach, intestines and other digestive system tissues. If you take a bath immediately after a meal, the human body in a state of satiety, more likely to cause indigestion symptoms, and even increase the functional burden on the cardiovascular and cerebrovascular tissues, easy to cause the brain to intermittent ischemia, hypoxia and other conditions, thus inducing dizziness, weakness, chest tightness and other adverse symptoms reaction. And 2 hours after the meal and then take a bath can avoid this situation. In addition, it is also not recommended to take a bath on an empty stomach to prevent hypoglycemia, which increases the risk of accidents.