Taking a shower before going to sleep, washing away the dust of the day, and being exhausted, has become the most enjoyable time for many people every day. But Fei Fei, chief physician of the Department of Dermatology at the Southwest Medical University of the Third Military Medical University, told the reporter of the “Life Times” before going to sleep. Bathing may cause bad sleep.
The study found that when the body temperature drops to a specific temperature, the body will feel sleepy and urge the body to sleep quickly. If the body surface temperature rises before going to sleep, it will affect the normal sleep. Bathing can promote blood circulation, relieve fatigue, but also Increasing the temperature of body surface will inhibit the secretion of melatonin in the brain and thus reduce the quality of sleep. This is also the reason why it is not recommended to do anything to increase the body surface temperature before going to bed.
Hao Fei suggested that bathing at least one hour before bedtime is better and the water temperature should be controlled at about 37-39 degrees Celsius. In this way, at bedtime, body temperature has dropped to a suitable temperature and it is easier to fall asleep. If you come home late, you can wash it. After the hot shower, apply cold water to the forehead and flush the wrist to accelerate the lower body temperature.
In addition to going to bed, there are some time periods that are easy to 'wash wrong':
After exercise, many people like to take a bath immediately after exercise to wash away sweat. In fact, when the body is in an excited state, it is not appropriate to immediately take a hot bath or sauna, otherwise it will increase blood flow to muscles and skin, resulting in insufficient blood supply to other organs. Also, shortness of breath after exercise, lack of oxygen in the air-free bathroom, coupled with the relative lack of blood volume after sweating, causing dizziness, general weakness, and even prostration shock and syncope symptoms. Therefore, exercise After the best rest 30 to 45 minutes and then take a shower.
Take a bath after a meal or an empty stomach. Taking a bath immediately after a meal can reduce blood flow in the digestive tract and affect the digestion and absorption of food. An empty stomach bath can cause hypoglycemia, insufficient blood supply to the brain, and cause syncope. The bath time should be about 1 hour after a meal. should.
The bath time is too long. The total soaking in the bathtub is very frustrating. The blood supply to the head is reduced, causing brain or heart ischemia, hypoxia, and even severe arrhythmia and sudden death. Therefore, the bath control is 20 Within minutes, if it is a shower, about 7 minutes. ▲ Interviewed experts: Chief physician of Department of Dermatology, Southwest Hospital, Third Military Medical University, Hao Fei
