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How about taking a cold bath in summer? What should I pay attention to when taking a cold bath

in the hot summer, I always like to have a cool bath and stay in the air-conditioned room. Can I take a cold bath in summer? What should I pay attention to when taking a cold bath

1. When taking a cold bath, because the water temperature is too low, the human body will feel cold and generate a series of stress reactions, such as rapid heartbeat, high blood pressure, muscle contraction, nervous tension, etc., which can not only eliminate fatigue, but also easily cause a cold, which should be avoided as much as possible. For those friends with poor physical fitness, they can't bathe in cold water, otherwise they would have poor resistance. Because of the cold stimulation, they would cause colds, fever and other diseases.

2. In some parts of the world, climate change is so great that the flu is ahead of schedule. It is not wise for some friends to take a cold bath. However, it can wash face with cold water for a long time, promote blood circulation, prevent cold and rhinitis, and make skin more shiny and elastic.

3. For winter swimmers who keep exercising all the year round, they need to have a process of learning and adapting, and they need to keep doing it all the year round. However, cold bath exercise must take a step-by-step approach: in autumn, the temperature gradually reduces, and the human body gradually adapts to the cold and cold water, so that in late autumn and winter, cold bath does not feel too cold. The step-by-step process of cold water bath should also include the local part of the bath to the whole body, the water temperature from high to low and the bath time from short to long.

Precautions for cold bath;

1. Women should never take a cold bath

When taking a cold bath, because the water temperature is too low, the human body will feel cold, resulting in a series of stress reactions, such as rapid heartbeat, high blood pressure, muscle contraction, nervous tension, etc., which can not eliminate fatigue, but also easy to cause cold, should be avoided as much as possible. Because of the special physiological reasons, especially during menstruation, lactation and pregnancy, the stimulation of cold water will cause female endocrine disorders, amenorrhea and abdominal pain, and many bacteria will also enter the vagina to cause vaginitis and other gynaecological diseases, which will have a certain impact on the pregnancy and physical health of female sex.

2. Patients with coronary heart disease should not take cold bath!

Cold water bath can promote the blood circulation of blood vessels around the body, enhance the opening and closing function of skin pores, long-term adherence to cold water bath can improve the cold resistance of the body, which is conducive to the prevention of cold and other diseases.

Cold water bath is good for healthy people, but not for patients with coronary heart disease. Because cold water stimulation can induce angina or even acute myocardial infarction or sudden death. According to clinical research, the peak of acute myocardial infarction is from November to next April. The main reason may be related to cold stimulation and climate mutation. Because after the patients were stimulated by cold, they excited the alpha adrenergic receptor of the body, which caused the contraction of systemic arterioles, increased the resistance of cardiac ejection, and increased the oxygen consumption of the heart muscle.

Because of the coronary artery disease, the coronary artery blood flow can not be increased correspondingly, resulting in myocardial ischemia and angina.

Therefore, patients with coronary heart disease should pay special attention to cold prevention and warm keeping in cold seasons, and avoid taking cold baths to avoid acute attack of coronary heart disease.

Don't take a cold bath after sex

In the process of 'same bed', the blood circulation of the whole body is accelerated, which is manifested as the rise of blood pressure, the acceleration of heartbeat, the enhancement of gastrointestinal peristalsis, the flush of skin, the opening of sweat gland pores and sweating, etc. Therefore, after the end of the Communist Party, you will feel hot and thirsty. Some people are eager to drink cold drinks or take a cold bath to get rid of sweat, which is harmful to their health.

Because in the process of sexual life, the blood vessels of the gastrointestinal tract are in the state of expansion. Before the congestion of the gastrointestinal mucosa has not returned to normal, ingestion of cold drinks will make the gastrointestinal mucosa suddenly cold and suffer certain damage, and even cause gastrointestinal discomfort or colic. In the same way, during the * * process, the blood vessels of the skin around the body are also congested and dilated, and the pores of sweat glands are all in the state of opening and perspiration. At this time, if you are blown by the cold wind or take a cold bath, the blood vessels of the skin will suddenly contract, so that a large amount of blood will flow back to the heart, increasing the burden on the heart; at the same time, it will cause the excretory pores of sweat glands to suddenly close, so that the sweat will be stored in the sweat glands, which is harmful to health.

If you are thirsty, drink a small amount of warm boiled water first. About 1 hour after the sex, when the blood circulation of all the organs of the body system returns to normal, it is appropriate to take a cold bath.

4. Take a cold bath after sweating in summer

After sweating in summer, you can't take a cold bath immediately. This is because of the high temperature in summer and the increase of body heat production during exercise. Evaporation of sweat and expansion of skin blood vessels are important ways of body heat dissipation.

At the end of exercise, the human body is still in a state of vigorous metabolism, increased heat production and skin vasodilation. If you take a cold bath immediately and the skin is stimulated by cold water, the skin vasoconstriction will be caused by nerve reflex. As a result, the sweating and heat dissipation will be blocked, but the heat dissipation will be difficult and the temperature will rise. At the same time, the decrease of skin blood flow causes the sudden increase of blood flow back to the heart, which will increase the burden on the heart.

Also, the body from the hot environment into the cold environment, too late to adapt to adjust, often prone to cold or gastrointestinal spasm. After exercise, muscle fatigue and tension increase, and then cold stimulation may cause cramps. After sweating in summer, you should drink some boiled salt water properly, then rest for about 1 hour, do some preparation activities and take a cold bath. If possible, it's best to take a warm bath.

5. Take a cold bath after work

You can't take a cold bath immediately after sweating in summer. This is because at the end of labor, the human body is still in a state of vigorous metabolism, increased heat production and skin vasodilation. If you take a cold bath immediately, the skin will be stimulated by cold water, which will cause skin vasoconstriction. As a result, sweating and heat dissipation will be blocked, but it will make heat dissipation difficult and body temperature rise. At the same time, the decrease of skin blood flow causes the sudden increase of blood flow back to the heart, which will increase the burden on the heart. After work, muscle fatigue and tension increase. At this time, cold stimulation may cause cramp, cold or gastrointestinal spasm.