It's easy to sweat in hot weather, so taking a shower before going to bed every night has become a "routine" for most people, otherwise they won't feel comfortable all over. However, for some chronic disease patients, elderly people, etc., taking a bath at will is not feasible, as it can easily cause unnecessary damage to the cardiovascular system, skin, etc. Next, we will list three bathing methods that are prone to getting sick. Taking a cold shower when the body is so hot that it is about to smoke may sound refreshing and comfortable, but in essence, it is a artificially created illusion of "environment cooling", and it is not cooler than taking a warm shower. Moreover, taking a cold shower itself is also a relatively dangerous behavior. Although autumn has begun, the weather is still hot, and the human body sweats more. The skin capillaries are often in an expanded state. If one suddenly takes a cold shower, it can stimulate blood vessel contraction, causing discomfort such as poor sweating, palpitations, and headaches. Especially for middle-aged and elderly people, as well as those with a history of coronary heart disease, hypertension, stroke, and arrhythmia, this "sudden cold stimulation" is another burden on the body. Of course, the temperature of the shower water is also not good. With hot water flushing, the capillaries throughout the body expand, and a large amount of blood rushes to the surface. The blood in important organs such as the heart and brain is relatively reduced, which is also at risk for people with chronic diseases such as hypertension, arteriosclerosis, and coronary heart disease. It is recommended to control the water temperature between 38 ℃ and 40 ℃ for daily bathing. Taking a shower for too long can also result in relatively high bathroom temperatures, especially during hot weather. Staying in such a closed and stuffy environment for a long time can easily make it difficult to breathe. Especially for the elderly, standing and bathing for a long time is also a physical challenge. Generally, taking a shower for 5 to 10 minutes is sufficient, and even if taking a bath, it is best not to exceed 20 minutes. Especially for people with cardiovascular disease, it is not recommended to take long baths. In addition, many friends like to vigorously scrub their baths. In fact, the vast majority of ordinary people are not that dirty. The "dirt" generated during scrubbing is partly the "garbage" on the surface of the skin, such as dead skin cells and oil, but more of it is the stratum corneum of the human body. Rubbing too hard can easily damage the natural barrier of the skin. Therefore, the average person can take a bath at most twice a month, and the intensity should be light, with no redness or pain on the skin. If you take a shower immediately after eating and exercising, the blood flow and secretion of digestive fluids in the digestive tract will decrease, which may lead to indigestion and increase the burden on the heart. Moreover, taking a shower immediately after a meal may cause hypoglycemia, and even symptoms such as collapse and fainting. It is best to take a shower one hour after a meal. This also includes after drinking a lot of alcohol, as drunkenness can affect a person's sense of balance, and accidents such as bumps and falls may occur in slippery bathrooms. After intense exercise, the blood circulation in the human body becomes active. Taking a shower immediately can increase the burden on the heart and blood vessels, and for people with poor physical fitness, it may also pose a fatal danger. It is recommended to wait until the heartbeat and blood pressure return to normal before taking a shower. Tips for zoning care for better skin care: How to choose suitable bath products? Many friends are concerned about the cleaning ability of soap and shower gel, fearing that they may not be able to remove dirt during showering. In fact, excessive cleaning ability can easily damage the protective layer of the skin. Some elderly people usually use sulfur yellow soap for bathing, which can lead to excessive keratinization of hair follicles and even trigger skin diseases such as eczema. When choosing bath products, it is recommended to choose weakly acidic products that are as gentle as possible to ensure that they do not cause additional irritation to the skin while cleaning it. After taking a shower, apply moisturizing body lotion in a timely manner to avoid dry and peeling skin. Dermatology experts also recommend "zone care" during bathing, such as increasing the amount of bathing products in areas with sebum overflow such as the chest and back; When cleaning relatively dry areas such as limbs and perineum, excessive use of bathing products should be avoided. (New Society)