Is taking a cold shower healthy or harmful? Reminder: There are 3 benefits, but these 4 people should avoid

If you like to read all kinds of health care articles, you will find that many health care content recommends everyone to take a cold shower!

　　If you have ever had the experience of taking a cold shower, you will find that after taking a cold shower, you feel refreshed and in a better mood!

　　From a scientific point of view, the reason why taking a cold shower can make you feel refreshed and in a better mood is that during the bathing process, the cold water has a strong stimulation on the sympathetic nerves, and the hypothalamus stimulates a large amount of norepinephrine. secretion . This hormone not only strengthens the heart's ability to contract , but also increases the body's excitability , making people more energetic.

　　Moreover, cold water is originally an irritating substance, which can instantly increase the alertness of the human body, and mobilize the body temperature regulation system , allowing the body to gradually adapt to the water temperature. At the same time, a cold bath will also stimulate a large amount of beta-lactholphthalein secretion , which can also relieve stress and enhance pleasure . Therefore, after a cold shower, it does make people feel comfortable.

　　Not only that, a large number of research studies have shown that cold showers in healthy people have multiple benefits:

　　1. Enhance blood circulation

　　Because the blood vessels have a very strong ability to sense temperature changes, in the process of taking a cold shower, the blood vessels can be stimulated, which helps to improve blood circulation, and also plays a role in strengthening the heart ;

2. Lose weight

　　A related research survey shows that in the process of taking a cold shower, the metabolism of the human body is significantly accelerated , which can improve the speed of the body to burn fat, consume more calories, and then play a role in weight loss;

　　3. Mental health

　　Taking a cold shower may have a positive effect on mental health. As mentioned above, the process of taking a bath can promote the secretion of norepinephrine and beta-lactholphthalein .

　　At the same time, it can also promote the operation of peripheral nerve endings, send a large number of pleasant signals to the brain, and then play a role in relieving bad emotions.

　　Seeing this, have you been moved? Wait, don't worry, the following groups of people are not suitable for taking cold showers:

1. Patients with high blood pressure

　　Hypertension is a chronic disease characterized by elevated arterial blood pressure. Clinically , hypertension can be diagnosed as long as the arterial systolic blood pressure exceeds 140 mmhg and the diastolic blood pressure exceeds 90 mmhg .

　　If you have been diagnosed with high blood pressure, it is not recommended for everyone to take a cold shower. Because cold showers can stimulate blood vessels, lead to vasospasm and constriction, and further increase blood pressure , which is not conducive to blood pressure control;

2. Atherosclerosis

　　If you have three high diseases and have been combined with atherosclerosis. In this case, it is not recommended for everyone to take a cold shower. Because the water temperature is too low, it will cause the blood vessels to contract violently and increase the pumping burden of the heart.

　　Once the unstable plaque falls off with the vasoconstriction, it may form a thrombus in an instant, and lead to serious diseases such as myocardial infarction and stroke, and the patient may even die suddenly;

3. Allergy to cold

　　This condition mainly refers to patients with cold urticaria, as the patient's body is very sensitive to cold water. After exposure to cold water, local itching, small edema, and wheals will appear. In severe cases, the patient will have similar symptoms throughout the body.

　　Therefore, such people cannot take cold showers. In addition, if you suffer from sciatica, arthritis, rheumatism , etc., cold showers are not recommended;

　　4. Poor immune function

　　For example , women who are menstruating, women who are pregnant and breastfeeding, those who are overly tired and weak, people with AIDS, and people who are recovering from serious illnesses are not recommended to take cold showers. Because of the poor immune function at this stage , taking a cold bath may stimulate the body and increase the risk of various diseases.

　　Finally, it should be emphasized that cold showers are indeed beneficial to physical health, but it is based on the premise of physical health.

　　Therefore, cold showers are not easy for everyone to try, and everyone should choose according to their own physical conditions. In fact, taking a warm bath has several benefits for the body, and it can also play a role in promoting blood circulation.