I find that taking a hot bath helps me sleep and relax, but will taking a bath late at night when it's cold affect my health? (Tung, 27 years old, Hanoi).
Reply:
At night, the body will reduce metabolism, reduce muscle tone, reduce contractions of the heart and blood vessels, and the digestive tract to rest. Bathing late at night will change the body's normal biological rhythm.
The later it gets at night, the colder the weather gets, the greater the temperature difference between the environment and the body. Taking a hot bath, then the hot water evaporates, makes the body lose heat, making it susceptible to cold. When losing heat, the body will constrict blood vessels to retain heat, causing blood pressure to increase, blood vessels to constrict. Bathing at night makes chronic respiratory patients such as chronic bronchitis, bronchial asthma... more likely to get worse, increasing the risk of stroke, myocardial infarction.
For skin and hair, bathing at night with hot water dries the skin, hair falls out easily, and causes fungus. Bathing at night can increase spasm in the colon or cause increased secretion of gastric acid, causing pain in the epigastric region.
To ensure safety, you should shower before 8pm. Do not shower at night or early in the morning as it can easily cause strokes and accidents. You should shower from the neck down first, let your hands and feet get used to the water, then wash your hair. Bath time should only be about 10 minutes, not too long. The water temperature should not be too hot to dissolve the oil layer, causing dry skin, and should not be too cold to cause vasoconstriction, which is not good for the circulatory system. The reasonable temperature is about 40 degrees.
After bathing, you can wash your hair for 5 to 7 minutes, do not soak for too long.
Do not bathe when you are too hungry, too full, drunk or tired or just woke up. Do not bathe in an area that is too cold or windy. You should dry your body and hair, and wear clothes carefully to keep your body warm after bathing. Do not bathe immediately after vigorous exercise that causes a sudden change in body temperature.
Doctor Nguyen Huy Hoang
Vietnam - Russia Hyperbaric Oxygen Center, Ministry of Defense
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