Why do you always feel chest tightness and breathlessness when taking a bath in summer or in rainy days?

1. When taking a cold bath, the human body will feel cold because of the low water temperature, which will 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. For those friends who are in poor health, they should not bathe in cold water, otherwise their resistance will be poor, and diseases such as colds and fever will be caused by cold stimulation.

In some areas, the climate changes greatly, which makes the flu advance. It is unwise for some friends to take a cold bath as soon as possible. But you can insist on washing your face with cold water for a long time, promote blood circulation, prevent colds and rhinitis, and make your skin more shiny and elastic.

For winter swimmers who insist on exercising all the year round, there needs to be a process of learning and adapting, which needs to be persisted all the year round. However, the cold water bath movement must be gradual: in autumn, the temperature gradually decreases, and the human body gradually adapts to the cold cold water, so that in late autumn and winter, the cold water bath will not feel too cold. The "step by step" of cold water bath should also include "from local to whole body", "from high to low" of water temperature and "from short to long" of bathing time.

Precautions for taking a cold bath;

1. Women shouldn't take cold showers.

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. Because of its special physiological reasons, especially when female friends are in menstruation, lactation and pregnancy, the stimulation of cold water will cause endocrine disorders, amenorrhea and abdominal pain, and many bacteria will also enter the vagina to cause gynecological diseases such as vaginitis, which will seriously affect women's future pregnancy and health.

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

Cold water bath can promote the blood circulation of blood vessels in the whole body and enhance the opening and closing function of skin pores. Long-term adherence to cold water bath can improve the cold resistance of the body, thus helping to prevent diseases such as colds.

Cold bath is really good for healthy people, but it is not suitable for patients with coronary heart disease. Because cold water stimulation can induce angina pectoris, even acute myocardial infarction or sudden death. According to clinical research, the peak of acute myocardial infarction is from 1 1 to April of the following year, and the main reasons may be related to cold stimulation and sudden climate change. Because the patient is stimulated by cold, the α adrenergic receptor of the body is excited, the arterioles of the whole body are contracted, the ejection resistance of the heart is increased, and the oxygen consumption of the myocardium is increased.

Coronary artery disease in patients with coronary heart disease, coronary blood flow can not be increased accordingly, which eventually leads to myocardial ischemia and angina pectoris.

Therefore, patients with coronary heart disease should pay special attention to cold and warmth in cold season, and avoid taking a cold bath to avoid an acute attack of coronary heart disease.

3. Don't take a cold bath in after making love.

In the process of "sharing the same bed", the blood circulation of the whole body is accelerated, which is manifested by increased blood pressure, accelerated heartbeat, enhanced gastrointestinal peristalsis, flushing of the skin, opening of sweat gland pores and sweating. Therefore, after * * is over, you will feel irritable and thirsty. Some people are eager to drink cold drinks or take a cold bath to sweat, which is not good for their health.

Because during sexual life, the blood vessels in the gastrointestinal tract are dilated, drinking cold drinks will suddenly damage the gastrointestinal mucosa and even cause gastrointestinal discomfort or colic before the congestion of the gastrointestinal mucosa returns to normal. Similarly, in the process of * *, the skin blood vessels of the whole body are also congested and dilated, and the pores of sweat glands are in an open state of perspiration. At this time, if the skin is blown by cool wind or bathed in cold water, the blood vessels of the skin will suddenly contract, so that a large amount of blood will return to the heart and increase the burden on the heart; At the same time, it will also cause the sweat gland drainage hole to suddenly close, so that sweat is stored in the sweat gland, which is harmful to health.

If you feel thirsty, you might as well drink a little warm water first. After sexual intercourse 1 hour or so, after the blood circulation of various organs of the body returns to normal, it is advisable to take a cold bath.

4. Take a cold shower carefully after sweating in summer.

After sweating in summer, you can't take a cold bath immediately. This is because the temperature is high in summer and the body generates more heat during exercise. Sweat evaporation and skin vasodilation are important ways to dissipate heat.

At the end of exercise, the human body is still in a state of vigorous metabolism, increased heat production and vasodilation of the skin. At this time, if the skin is immediately stimulated by cold water, the blood vessels of the skin will contract through nerve reflex, which will hinder perspiration and heat dissipation, but it will make heat dissipation difficult and body temperature rise. At the same time, the decrease of skin blood flow suddenly increases the blood flow back to the heart, which will increase the burden on the heart.

There is also the body from the hot environment into the cold environment, too late to adapt to the adjustment, often easy to catch a cold or cause gastrointestinal cramps. Muscle fatigue and tension increase after exercise, and then cold stimulation may also cause cramps. Drink some salt water properly after sweating in summer, then rest for about 1 hour, do some preparatory activities and take a cold bath. If conditions permit, it is best to take a warm bath.

5. Take a cold shower carefully after work.

After sweating in summer, you can't take a cold bath immediately. This is because at the end of labor, the human body is still in a state of vigorous metabolism, increased thermogenesis and vasodilation of the skin. If you take a cold bath immediately, your skin will be stimulated by cold water, which will cause the skin blood vessels to contract. In this way, 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 suddenly increases the blood flow back to the heart, which will increase the burden on the heart. Muscle fatigue and tension increase after work, and then cold stimulation may also cause cramps, colds or gastrointestinal spasms.

In the cold winter, many friends still turn on the tap and let the shower take a shower, just like in summer. In fact, this is very unscientific.

This is because the low temperature in winter makes the blood vessels of human skin contract, while the temperature of bath water in winter is relatively high. Warm water suddenly comes from the beginning, which will make the human body's regulatory system "unprepared", leading to the sudden expansion of blood vessels in the head and whole body, and a large amount of blood concentrated on the skin surface, leading to acute ischemia of important organs such as the heart and brain, dizziness, chest tightness and other discomforts will also come to the door. For friends who are good at cardiovascular and cerebrovascular diseases, this practice is tantamount to "adding insult to injury." Acute myocardial ischemia can lead to cardiovascular spasm, angina pectoris and even acute myocardial infarction. Acute cerebral ischemia is prone to "stroke" symptoms such as hemiplegia and aphasia; The blood pressure of patients with hypertension will suddenly drop, causing discomfort such as dizziness and palpitation, and even syncope.

Therefore, the correct way to take a bath in winter should be to wash your feet with hot water before taking a bath, and then slowly pour water on your body when your feet are warm, so that your body can adapt slowly. In addition to the "order" of bathing, the water temperature should not be too high, and 37℃-40℃ is appropriate; In terms of time, it is best to take a bath in winter for no more than 10 minute, and for no more than 15 minute. Drink a glass of warm water before taking a bath. Every year before and after the Spring Festival, there is a high incidence of cardiovascular and cerebrovascular diseases, so middle-aged and elderly friends with cardiovascular and cerebrovascular diseases should pay special attention.

During the Spring Festival, relatives and friends often have a drink when they get together. It should be noted that you should never take a bath immediately after drinking. Because when taking a bath, the glucose stored in the human body will be consumed in large quantities due to physical activity and accelerated blood circulation, and alcohol will inhibit the normal physiological function of the liver, making it impossible to convert the stored glycogen into glucose and replenish it to the blood in time, thus significantly reducing the blood sugar content, and even causing shock in severe cases. Therefore, the best time to take a bath is about 2 hours after drinking.

Bathing can remove sweat, grease, relieve fatigue, relax muscles, promote blood circulation, improve sleep and be beneficial to health. However, with the arrival of winter, it is necessary to reduce the number of baths and shorten the time of bathing, otherwise it will not only be harmful to health, but also wash out.

Dry skin itches easily in winter.

According to Qu Xing, director of dermatology department of Dongzhimen Hospital of Beijing University of Chinese Medicine, the winter climate is cold, skin metabolism slows down, pores are blocked, and sweat glands and sebaceous glands are in the lowest functional state. There will also be some corresponding changes in the skin, such as the skin's luster darkening, facial wrinkles increasing and deepening, chapped lips peeling repeatedly, rough hands and feet skin and even chapped skin, and the whole body skin will be dry to varying degrees, especially in the elderly, patients with less sebaceous glands secretion or primary skin diseases, and skin itching will occur. In addition, the increase in the use of cosmetics has also led to an increase in the incidence of cosmetic dermatitis.

Too many baths can easily lead to diseases.

The outermost layer of skin is stratum corneum, which has a certain protective effect on the skin. If the number and frequency of bathing are too long, the stratum corneum will be damaged and lose its protective effect on the skin, and the water in skin cells will evaporate more easily and the skin will be dry. Traditional Chinese medicine believes that "dryness leads to wind, and wind causes itching", in which "wind" refers to a cause that wanders in the body, leading to itchy skin.

Hot water bath time should not be too long.

The longer the shower time, the more toxic substances volatilize in the air, and the higher its content. If you don't take a bath in winter, you will faint, shock and even die. With the scouring of hot water, the capillaries of the whole body dilate, and a large amount of blood dilates the blood vessels on the body surface, and the blood of important organs such as the heart and brain is relatively reduced. Especially the elderly with hypertension, arteriosclerosis and coronary heart disease are more prone to stroke and myocardial infarction. Elderly people with emphysema, cor pulmonale and asthma also feel difficulty breathing. Generally, taking a bath for 20 minutes and taking a shower for 3-5 minutes is enough.