How long is the best time to swim in winter?

In winter, the weather starts to get cold. People who like swimming mostly go indoors, and a few people swim outdoors, which is called winter swimming. At this time, we will observe that the water in the river is already very cold. We must warm up before entering the water. We can start swimming after the body adapts to the water temperature, and we must observe the recent discomfort of the body. Winter swimming is prohibited for those with colds or serious diseases, and there are also restrictions on swimming. So how long is it good to swim in winter?

Scientific winter swimming requires people to adapt to different people, time and place. You should have physical examinations at the right time, proceed step by step, persevere, and do things within your ability. It is best to swim in a group to ensure safety and dress appropriately to prevent frostbite. Warm-up and finishing activities must also follow the correct methods and be done at the right time and in the right amount. Research and practice have shown that for healthy people who have mastered swimming skills, insisted on swimming exercises since summer and autumn, have a correct understanding of the characteristics of winter swimming and have a correct self-protection awareness, scientific and moderate winter swimming exercises will not cause harm to the body.

However, not everyone is suitable for winter swimming. People with serious diseases such as hypertension, coronary heart disease, cerebrovascular disease, kidney disease, liver disease, mental disorders and diabetes, people with allergic constitution, congenital heart disease, epilepsy, as well as people with trauma or inflammation and alcoholics should not participate in winter swimming, otherwise it may cause sudden illness or harm to the body. Since children are in the stage of physical development, they should be more careful about participating in winter swimming in moderation and must be supervised by adults. The amount of exercise in winter swimming should be controlled within a safe and effective range. If you spend too little time in the water and don't get enough stimulation, you won't achieve the exercise effect.

Generally speaking, when you first get into the water, your body temperature drops rapidly and you will feel cold. Then your skin turns red, your body temperature begins to rise, and you feel warm and comfortable. At this time, when you get out of the water and get ashore, you will generally feel more relaxed and comfortable. If you continue to be stimulated by cold water, until your body shivers and your hands and feet become numb, this is a sign of excessive exercise, which can easily damage certain organs and tissues.

After winter swimming, you should keep warm and exercise immediately to restore your body temperature. After getting ashore, use a dry towel to dry your body until it turns red. Then, quickly get dressed and jog or jump in place until your body temperature has basically returned to normal. After winter swimming, avoid entering a high-temperature room, sitting by a fire or taking a hot bath immediately. Winter swimming is actually "swimming in all four seasons" and requires persistent practice. It is a challenge to people's psychology and will, an excellent way to exercise to overcome and surpass oneself, and plays a positive role in people's mental health. At the same time, winter swimming can also cultivate a brave and strong spirit, cultivate a positive sentiment, improve work and social interaction skills, and promote the all-round development of people.

The skin generally has three reaction phases to cold stimulation. Phase 1: After entering the water, the skin’s blood vessels contract due to the stimulation of cold, and the skin color becomes pale. Phase 2: After staying in water for a certain period of time, the blood flow on the body surface expands, the skin turns from pale to light red, and the skin turns from cold to warm. The third stage: staying too long, the body temperature dissipates more than the heat generated, and goose bumps and chills appear on the skin. This is a taboo period for summer swimming, and you should get out of the water in time. Swimming should generally not last more than 1.5 to 2 hours.

How long is it good to swim in winter? The swimming time should not be too long at this time. Even if the body has adapted to the water temperature, the body will experience discomfort after being in the water for a long time. Swimmers should consider their physical fitness. When the water temperature is too cold, it will stimulate the body's organs. If you come ashore for a long time, it is more likely to increase the chance of accidents. After swimming, the patient should replenish calories in time. It is not advisable to take a shower immediately. Hot water can easily cause physical discomfort to the patient, and the harm will increase.