Which is better for a hot or cold shower

Bathing is one of the basic elements of personal hygiene, especially for people working and living in cities. They take a bath after get off work every day to clean the day's dust and relieve fatigue. So which is better, hot water or cold water bath? Especially now that winter is coming, many male friends who exercise like to take a cold shower. So is it better to take a hot shower or a cold shower? Let's take a closer look at the hot and cold showers.

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1. Do not take a bath before or after meals: The food in the stomach has been emptied before meals, and the blood sugar level of the human body is lower than normal levels at this time. If you take a bath when you are hungry before a meal, you are prone to hypoglycemia and dizziness, or even fainting. Taking a bath immediately after a meal will cause the blood vessels on the surface of the muscles to dilate, and blood will fill the body surface, while the blood in the gastrointestinal tract will decrease, and the secretion of digestive juices will be inhibited, affecting the digestion and absorption of food. Therefore, there has long been a saying among the Chinese people: "Don't wash when you are full, and don't bathe when you are hungry."

2. The water temperature should not be too high or too low: the temperature of the bath water should be higher than the normal body temperature, that is, 37℃, which is called a hot water bath; lower than the body temperature but higher than the skin temperature, that is, 33℃, which is called a warm water bath. The water temperature at 34℃-36℃ is beneficial for removing scale and relieving itching; 37℃-39℃ is beneficial for eliminating fatigue; 40℃-45℃ can relax muscles, promote blood circulation, induce sweat and relieve pain. The temperature of bath water can be adjusted according to the season. For example, you can choose a hot bath in winter and a warm bath in summer. If the bath water is too hot and the temperature is too high, it will not only damage the skin, but also cause the blood vessels on the skin surface to dilate, the blood flow on the body surface to increase sharply, the blood supply to the heart and brain to decrease, and there is often a risk of hypoxia and fainting.

In the summer, some people, especially teenagers, like to take a cold shower right after they have just stopped an activity or exercise and are sweating profusely. This can actually make it easy to catch a cold and get prickly heat. We advocate taking warm baths in the summer because warm water will not cause skin blood vessels to constrict and sweat glands can remain unobstructed.

3. Bathing time: Bathing time should not be too long, especially for children and teenagers. Generally, it should not exceed half an hour. Soaking for too long will increase fatigue and cause dizziness.

4. Choice of bathing method: Bathing methods include shower, tub bath, pool bath, etc. Shower is the most hygienic, especially for women. When men take a bath in the large pool in the bathroom, they should not soak in the bathtub for too long. They should rinse with clean warm water after washing. When taking a bath, you can use perfumed soap or medicated soap, but avoid using laundry soap or washing powder. Finally, rinse your skin with clean water and do not leave soap foam on your skin.

When bathing, rub soap or shower gel in the palm of your hand and rub the skin all over your body from bottom to top, which is called friction bathing. Reverse friction from bottom to top can play a role in massage and health care. It can not only remove dirt on the skin surface, but also help relieve skin and muscle fatigue, promote blood circulation in the skin, enhance the skin's respiratory function, and reduce and delay wrinkles caused by sagging skin downwards. The friction force in the shower should not be too strong, just enough to make the skin surface slightly red. Avoid rubbing the skin with hard towels or other items to avoid scratching the epidermis.

The above is about whether hot water or cold water bathing is better. The best in life is warm water bathing. Warm water can dilate skin capillaries, open sweat pores on the skin, promote the excretion of new metabolism, and has stronger cleansing ability than cold water. Especially after a busy day at work, taking a hot water shower can relieve fatigue. It is especially recommended that female friends should not take cold water baths. I wish you good health.