Analysis:

In the south, it is common to take a cold bath. I remember that when winter came, some boys insisted on taking a long cold bath, so I heard the boy say that a howl was often heard in the corridor, and then the sound of singing loudly to wash the cold water.

Taking a cold bath is also good for your health. Taking a cold bath can exercise blood vessels, enhance physical fitness, let blood vessels do gymnastics and prolong life. Taking a cold bath often can make your appetite strong, your food sweet and your constipation less. Experiments show that cold water bath exercise has a good preventive and therapeutic effect on neurasthenia, headache and insomnia. Cold water acts on the skin, causing the blood vessels of the skin to contract violently, and the blood flows to the zang-fu organs or deep tissues, which can enhance the metabolic process of the zang-fu organs and increase the heat. Blood circulation in abdominal cavity is accelerated, gastrointestinal function is active, and intestinal peristalsis is accelerated, which can improve digestion and absorption ability, thus enhancing the function of the whole digestive system and making people have a strong appetite.

In cold water, the brain will immediately get excited and mobilize all organs and tissues of the whole body to strengthen activities to resist the cold; The relaxation of systemic blood vessels depends on the regulation of central nervous system. Long-term cold water bath exercise can enhance the function of the central nervous system and slow down the aging and death of brain cells through nerve reflex and brain function.

However, although cold water bath can strengthen the body and get rid of diseases, exercise must be moderate, otherwise it will be counterproductive. And whether you can take a cold bath or not varies from person to person.

Women taking a cold bath will make some gynecological diseases take the opportunity to "touch" the upper body!

When taking a cold bath, because the water temperature is too low, the human body will feel cold and produce a series of stress reactions, such as rapid heartbeat, high blood pressure, muscle contraction and nervous tension. It can not only eliminate fatigue, but also easily cause colds and should be avoided as much as possible. Due to its special physiological reasons, especially for female friends during menstruation, lactation and pregnancy, cold water will cause endocrine disorders, amenorrhea and abdominal pain, and many bacteria will enter * * * to cause gynecological diseases such as * * * inflammation, which will seriously affect women's future pregnancy and health.

For those female friends who are in poor health, they should not bathe in cold water, otherwise their resistance will be poor, and cold will cause colds, fever and other diseases.

If people who have never taken a cold shower before, if they suddenly take a cold shower, their blood vessels will contract, their body temperature will drop, and their bodies will catch cold, leading to colds. Therefore, taking a cold bath should start in summer, last from summer to autumn, and last until winter, and it is best not to interrupt during the period. It is best not to wash your face in a cold bath, because the respiratory system is concentrated there, which is easy to cause respiratory diseases due to colds. When taking a cold bath, you should keep your head dry.

If you take a bath with very cold water, your skin will be frostbitten and frostbitten after a long time. So the time for taking a cold bath varies from person to person, from time to time and from place to place. Not too long. The lower the temperature, the shorter the water bath time. Wash for 3-5 minutes at most in winter. And dry your body with a dry towel after bathing, and then carefully rub the joints of your whole body with a wet towel. In addition, you should pay attention to taking a cold bath when you are healthy. When you are unwell, such as catching a cold, don't take a cold bath again.

If teenagers are strong enough to take a cold bath and pay attention to dry their bodies after washing, there will be no big problem.