1, winter swimming is cold before hot, bitter before sweet, which can sharpen the will, cultivate the temperament and enhance the ability to resist the cold, thus reducing the occurrence of colds.

2. Swimming cold therapy in winter can improve local and systemic vasomotor function, and the blood vessels contract first and then expand, thus promoting blood vessel microcirculation. Repeated vascular movements make blood vessels more elastic and prevent vascular sclerosis. It can effectively enhance the beating ability of the heart, make it have a powerful heart pumping function, and can violently wash away cholesterol-like spots deposited on the inner wall of blood vessels, prevent harmful substances from accumulating in blood vessels, prevent and treat hypertension and lower blood pressure, and reduce the probability of thrombosis and coronary heart disease.

3. Winter swimming greatly enhances the body's immune function and can prevent tumors or cancer lesions caused by gene mutation during cell regeneration. After suffering from tumor or cancer, it also plays a role in inhibiting and killing tumor and cancer cells because of physical enhancement.

4, winter swimming to keep out the cold, consume more energy, prevent fat from accumulating in the body and lead to high triglycerides, which is a good way to lose weight.

5. Take a deep breath in cold water in winter swimming, mix in more oxygen than usual, and spit out a lot of carbon dioxide, which can enhance vital capacity and play a good role in preventing and treating pharyngitis, bronchial and lung diseases.

6, can enhance cardiopulmonary function. After winter swimming, myocardial contractility is enhanced, blood circulation is accelerated, and the functions of various systems of the body are well promoted and developed.

7. Winter swimming can promote endocrine. After the human body is strongly stimulated by cold, it is immediately reflected to the pituitary gland, adrenal gland, pancreas, gonad and other glands through the nervous system, and each gland secretes corresponding hormones, which are called neurohumors. Then the physiological functions of the corresponding organs are adjusted through the corresponding nerve centers to establish a new balance. It stands to reason that with the increase of age, the secretory function of each gland should have decreased, but experiments have proved that the secretion of thyroid hormone in winter swimmers has increased. Testosterone levels have also increased.

8. Through winter swimming exercise, I generally feel psychologically satisfied. Through the relief brought by intense cold stimulation, the constant psychological and spiritual charging of winter swimming will definitely have a positive impact on the physiological functions of various systems of the body. In this way, a higher level of physical and mental balance has produced a good cycle. It is not difficult to understand why winter swimmers ask for trouble and insist on winter swimming for many years or even for life.

9, skin care. When people swim, the water washes away the skin, sweat glands and fat glands, which plays a good massage role, promotes blood circulation and makes the skin smooth and elastic. In addition, when exercising in water, it greatly reduces the irritation of salt in sweat to the skin.

Winter swimming is your insistence. Generally, winter swimming needs a step-by-step process, starting in summer, persisting in autumn, slowly adapting to the weather, and the water temperature gradually becomes cold.

The best time to swim in a day is when the temperature is the highest at noon. Generally speaking, at noon in winter, the water temperature is high, usually 2 ~ 3℃ higher than the air temperature, the air humidity is low, and the human body's response to low temperature stimulation is relatively small. Although the air in winter swimming in the morning is fresh and people's spirits are the best, the temperature is cold and the sunshine is insufficient, and the water temperature is the lowest in a day. There is not enough light in winter swimming at night, which is prone to accidents, so it is not in favor of winter swimming at night

The best time for winter swimming exercise is from morning 10 to around 3 pm, and the place should be in the leeward and sunny place. At this time, the temperature is higher, and people will feel more comfortable in or out of water.

In addition, the time of each winter swimming is best to be relatively fixed, so that the body can establish a good conditioned reflex, form a fixed biological clock, and actively prepare for cold stimulation.

(The content of this article is contributed by Baidu.)