In summer, everyone's skin is stretched, the amount of perspiration is greatly increased, sebaceous glands are exuberant, and the skin surface is often in a moist and moist state. This is the response of human skin to adapt to the high temperature and high humidity environment in summer. The simplest and most common way to remove the "garbage" on the skin surface in time is to take a bath. In hot summer, wash at least once every morning and evening. Perhaps we all have the experience that taking a bath with warm water is more comfortable than taking a bath with cold water. This is because after sweat evaporates, the metabolic effluents remaining on the skin and sebum secreted by sebum are easily washed away by warm water. Summer is hot, and many people are used to taking a bath frequently, but there are two "inadvisables" for women to take a bath. First of all, it is not advisable to take a cold bath because the water temperature is too low. The human body will produce a series of stress reactions, such as rapid heartbeat, high blood pressure and muscle contraction. It can not only eliminate fatigue, but also easily cause a cold. For women, due to their special physiological reasons, especially during menstruation, lactation and pregnancy, the stimulation of cold water may cause endocrine disorders, amenorrhea, abdominal pain and so on. It may also cause some gynecological diseases, seriously affecting women's pregnancy and health.
Second, it is not appropriate to "sleep after washing." Because sleep often occurs after the body temperature drops, and women often take a bath for a long time, a hot bath will raise the body temperature and delay the release of "sleep hormones" in the brain, so it is best to take a bath 2 hours before going to bed; If you can only take a bath before going to bed in a day, you can cold compress your forehead with a wet towel for 5 minutes after taking a shower, so that your body temperature can drop to normal level and you can fall asleep as soon as possible.