Take a rest for 20-30 minutes after exercise before taking a bath. During exercise, the blood flow to the muscles increases and the heart rate increases. When exercise stops, blood flow and heart rate will be relieved, but it will last for a long time. If you take a bath immediately, it will increase the blood flow to your skin and muscles. In this way, the remaining blood is not enough to supply other important organs, such as the heart and brain, which leads to heart disease. It is not advisable to take a bath immediately after exercise. It is recommended to rest for 20-30 minutes after exercise, and take a shower with warm water after proper hydration. The time should not be too long, the water temperature is close to the body temperature, and the optimal water temperature is 35-37 degrees. The reasonable bathing time is that the heart rate returns to stability after exercise and after sweating stops. The water temperature should be slightly hot, especially for the elderly and hypertensive patients. Pay attention to the water temperature and time when taking a bath. Even healthy people should not soak in hot water for more than 5 minutes at a time. The effect of pool bath is better than that of shower, because it can relax body and mind more obviously. Other matters needing attention in expanding publicity activities 1. Don't eat it right away. After exercise, there is relatively little blood in the digestive organs, and the digestion and absorption ability is poor. If you eat it immediately, it will increase the burden on the digestive organs and cause dysfunction of the digestive organs. Generally, after 20 to 30 minutes of exercise, the digestion and absorption function will gradually recover. 2. Don't smoke immediately. Inhaling air mixed with a lot of smoke in the lungs will reduce the oxygen content in the lungs, which is not conducive to the elimination of fatigue in the body, and may also cause chest tightness, asthma, dyspnea, dizziness and fatigue. Don't drink coffee right away. Exercise is the best time to recover. Caffeine has a diuretic effect, and urination will accelerate the loss of water in your body. So it is not recommended to drink coffee within 1 hour after exercise and fitness.