Whether it is better to wash in hot water or cold water in this weather, "Tell me why"
Cold water is best, which is good for the skin and will also improve the body’s resistance and adaptability! Use hot water at the beginning, which will open the pores and make it easier to detoxify. Later, use warm water and then turn it into cold water. In this way, the skin will become more elastic after repeated changes in water. It is inevitable to be sweaty after exercising in the summer, especially when you are sweating profusely. A hot bath is better than a cold bath.
After exercising, some people take a cold shower from head to toe in order to feel refreshed. They feel very refreshed at the time, but may feel weak afterwards, and some may even have a headache. This is because when the body sweats a lot, the capillaries are in a state of expansion. If you take a cold shower, the blood vessels will shrink sharply, and the heat in the body will be inhibited by external forces and cannot be released for a while. Moreover, the arteries in the brain are very rich. It is very sensitive to external stimulation. In the hot season, the head is particularly prone to sweating after exercise. If you rinse the head with cold water at this time, it may cause abnormal intracranial blood vessel function, causing dizziness, headache, darkening of the eyes, and even Vomiting occurs, and in severe cases, intracranial hemorrhage may occur. It can be seen that taking a cold shower to quickly cool down is very dangerous and is not advisable. Especially for people who are not used to taking cold showers, sudden cold exposure to the body will often cause various discomforts. It is recommended that everyone do not try to feel refreshed and stay. Disease hazards.
For the vast majority of people who do not have the habit of taking cold baths, it is better to take hot baths to cool down after exercising in summer. Hot water bathing can wash away the sweat on the body, keep the hair follicles and skin clean, and can also make the skin breathable, speed up the blood circulation of the skin and muscle blood vessels, expand the capillaries, help the body dissipate heat, promote metabolism, and make the skin various. Partially obtain nutrients and accelerate the clearance of metabolic products such as lactic acid. After the blockages on the skin surface and in the sweat pores are removed, the skin can perspire smoothly, and the smooth "breathing" of the skin is conducive to the regulation of body temperature. In addition, a hot bath at an appropriate temperature can soothe nerves, relax muscle tissue throughout the body, and even have certain sedative, anti-itching, analgesic, and anti-allergic effects. Although your body will sweat more when it is heated in the summer, and you may feel hotter after taking a hot bath, but after a short rest, you will feel cool and comfortable, and enjoy that refreshing feeling .
The water temperature of hot bath should not be too high, generally 35-40℃ warm water is suitable.
It is not advisable to wash too often, because too many times will wash away all the oil normally secreted by the skin surface and the protective bacteria that normally live on the skin surface, which can easily cause skin itching and other symptoms, and the skin's resistance will also be weakened. , but it is easier to get sick