How about taking a bath with cold water in summer?

As the saying goes, "If you want to be healthy, take a cold bath every day". Many people feel refreshed after taking a cold shower, and even insist on washing all year round. So, how about a cold bath?

For most people, if the method is correct, taking a cold bath is good for health. This is because, in the first minute or two, the skin epidermis will shrink and blood will flow to the internal organs. But after two or three minutes, the body will adapt to this temperature, and the blood will be redistributed and returned to the skin epidermis. The whole process is like "gymnastics" for blood vessels, which can not only enhance the resistance, but also enhance the elasticity of blood vessels and prevent arteriosclerosis. Secondly, bathing with cold water will obviously stimulate the nervous system, leading to faster heartbeat, deeper breathing and faster blood flow, which can not only promote metabolism, but also make the skin soft and elastic. In addition, taking a cold bath also helps to enhance the digestive function, and has a certain auxiliary therapeutic effect on chronic gastritis, gastroptosis, constipation and other diseases.

However, in order to "enjoy" the benefits of taking a cold bath to the maximum extent, we must adopt scientific and reasonable methods, as follows: starting from summer, stick to it and step by step; Do a "warm-up" exercise before each cold shower: rub your skin for a few minutes until you feel red and hot; When taking a bath, first pour water on the limbs, and then rinse the chest and back for a few minutes to let the body have a gradual adaptation process; The water temperature should not be too low, 5℃-25℃ is appropriate, and the time should not be too long, 10- 15 minutes or so, and the longest time should not exceed half an hour. In addition, it should be noted that it is not advisable to take a cold bath after strenuous exercise, because the capillaries on the body surface are dilated at this time. If you suddenly "encounter" cold water, it will increase the burden on your heart and cause discomfort such as palpitation, shortness of breath and dizziness. In the process of bathing, if there are symptoms such as persistent whitening and dizziness, stop immediately to avoid accidents.

A cold bath is not for everyone. The following people should "relax" when taking a cold bath: infants and elderly people over 60 years old are best not to wash, and women should not wash during menstruation and pregnancy, so as to avoid excessive water temperature; For people with poor immunity due to long-term continuous overtime or illness, bacteria and viruses are easy to enter, causing diseases such as colds and pharyngitis; Sensitive person should not be washed with cold water, otherwise it will have a rash; Taking a cold bath in patients with hypertension will increase blood pressure, and even lead to cerebrovascular bleeding, stroke, coma and so on. Taking a cold bath in patients with heart disease will increase the burden on the heart, induce angina pectoris, acute myocardial infarction and even sudden death; Patients with rheumatism and sciatica who are stimulated by cold water will aggravate local pain and should not take a cold bath.

Women should not take a cold bath during menstruation to avoid vasoconstriction and induce menstrual disorder.