Some people stick to the correct way of keeping in good health, but they may actually go further and further on the road of keeping in good health. So what are the common health misunderstandings? Let's take a look at them.

Common health misconceptions 1 Myth 1: The earlier you do morning exercises, the better.

In summer, air pollutants are most difficult to diffuse before 6 am, which is often the peak of pollution. People generally like to do morning exercises in lawns, Woods, flowers and other places where green plants grow, but before sunrise, because there is no photosynthesis, there is not much fresh oxygen near green plants, but a lot of carbon dioxide is accumulated, which is obviously unfavorable to human health. Therefore, the time for morning exercise in summer should not be earlier than 6 o'clock.

Myth 2: "It's coolest to go shirtless"

Generally speaking, the smaller the clothing coverage area in summer, the faster the body dissipates heat, so the cooler it feels. But we can't generalize and think that "it's the coolest to go shirtless." The skin with bare chest can only increase the radiation and heat dissipation of the skin when the skin temperature is higher than the ambient temperature. In hot summer, the highest temperature is generally close to or higher than 37℃, so the skin can not dissipate heat, but can only absorb heat, so it will feel hotter if it is shirtless. The more unbearable the heat is, the less men can be shirtless and the less women can wear short skirts.

Myth 3: Dark sunglasses can protect your eyes.

Many people think that the darker sunglasses are, the better they can protect their eyes. In fact, this view is wrong If the color of the lens is too dark, it will seriously affect the visibility, and the eyes will be easily damaged by the difficulty of seeing, which will not protect the eyes. Experts suggest that the criteria for choosing sunglasses in summer are: the lens should be able to penetrate 15% ~ 30% of visible light, with gray and green as the best, which can not only resist ultraviolet radiation, but also have the best visual clarity, and the color change is minimal when watching external objects.

Common health misconception 2 Myth 1: Shaping underwear, you can have a good figure without effort.

Listen to the TV shopping column, what does the shopping guide lady say about shaping underwear? Body fat can move ... and then look at Japan, which is the earliest place to shape underwear in fashion. The first batch of fans are now 60 years old, and their bodies are still the same as when they were worn more than 30 years ago. Who do you think can resist such temptation?

No! Body-shaping underwear clings to the body, which not only affects normal blood circulation and sweat excretion, but also leads to vulva dampness and bacterial reproduction. In particular, girls wearing tights for a long time will not only affect their development, but also induce diseases such as breast hyperplasia or cysts. Therefore, health care experts remind that women have many important organs in the abdomen, such as uterus and ovaries. Wearing corsets for a long time will make muscles tense and affect physiological functions. Waist girdling may also affect blood circulation of lower limbs. If you spend 8 hours "shaping" every day, you are in a state of abdominal hypoxia, which is harmful to your body.

Myth 2: Paying attention to diet and exercise is equal to losing weight.

If you think that doing these two things well is enough to ensure weight loss, you are all wet. You may have overlooked another major factor: sleep problems caused by weight loss. Foreign experts point out that overweight and obese people are also Americans. Maybe we should consider that there is a possibility between obesity and sleep, and lack of sleep will lead to our appetite disorder. Everyone has their own normal sleep time. If the sleep time is less than this time, even if it is only one hour, it will lead to hormone imbalance in his body.

After analyzing the blood of these sleep-deprived people, it was found that the leptin content in their blood, which controls people's appetite, decreased. When we eat to a certain extent, leptin will "tell" that we are full. At the same time, the content of plasma hunger hormone in blood increased. The function of plasma hunger hormone is that when our body is short of heat supply, it will send out hunger information and urge us to start eating.

Myth 3: 8 glasses of water a day to stay healthy.

Everyone needs different water. Drinking too much is not only unhealthy, but also a burden on the kidneys. The water ingested by the human body is excreted through perspiration or respiration, and also needs to be metabolized through the kidneys. If you drink too much water, the water output of the kidney will increase, which will increase the burden on the kidney and easily lead to renal failure and affect the health of the kidney. Moreover, the electrolyte in the body will be diluted by too much water, leading to the danger of electrolyte imbalance.

Many people only pay attention to the amount of water they drink, but ignore that they also consume water in their daily diet. For example, every meal of food, fruit and drink contains water, and three meals account for at least 500 ml. Therefore, you must drink less than 1600 to 1950 ml of water every day, otherwise you will drink too much water, and patients with kidney disease or heart disease even need to limit water to avoid life-threatening.

Myth 4: Brush your teeth immediately after meals.

No! According to the latest research by dentists, brushing your teeth immediately after meals is harmful to your teeth health. There is a layer of enamel on the surface of the crown. Just after a meal, especially eating acidic food, the enamel will soften. Brushing your teeth at this time is easy to cause enamel damage. Over time, the enamel of teeth will gradually decrease, which is easy to make people allergic to teeth. When eating, teeth will have symptoms of acid and pain. Therefore, the dentist reminds that it is best to rinse your mouth with clear water after meals and brush your teeth after 1-2 hours.

Myth 5: Intestinal lavage, fasting, detoxification and beauty.

Many people obviously insist on bowel washing beauty, the purpose is to keep their bodies away from feces and toxins, avoid embarrassment in social occasions, and make their skin transparent and shiny, which is better than simple external cosmetics. People who are not used to this method can choose fasting to detoxify, that is, eating only fruit or drinking honey water one day a week can also play a role in eliminating toxins in the body.

No! Chinese medicine also stresses detoxification. In addition to normal defecation, urination and sweating, the ancients even said that bloodletting and detoxification were carried out during the Spring and Autumn Period. However, intestinal lavage is easy to thicken the intestine, and repeated stimulation for a long time will paralyze the intestine and eventually lead to some man-made diseases. The method of fasting and detoxification should also vary from person to person. Some people have spleen and stomach deficiency and cold, and if they eat cold things such as fruits, they will have flatulence in their stomachs. If you are an overworked worker, if you don't eat when you should eat, you will have symptoms such as fatigue, dizziness and hypoglycemia, which will have an impact on your health.

Myth 6: Sleeping naked is healthier.

Experts believe that sleeping naked is just comfortable and has nothing to do with health. Although wearing clothes and sleeping will affect perspiration and skin heat dissipation, human dander falls off all day, which is the nutritional source of dust mites and molds. There must be some microorganisms lying naked on the sheets and sheets, which are more likely to contact the skin. Sleeping naked may increase the risk of infection.

Myth 7: Early to bed and early to rise is good for your health.

With the increase of age, the earlier melatonin related to sleep is secreted, so the elderly tend to go to bed early and get up early, which is more in line with the natural physiological clock. Young people only need to work and rest according to their own physiological clock; But it is better not to exceed 1 1 pm, because it is the secretion time of growth hormone in vivo from 1 1 pm to 1 am. If you don't sleep at this time, the developing young people will not grow tall, and adults will easily get old.

Myth 8: Drink Chinese medicine while it is hot.

Generally, traditional Chinese medicine decoction should be "taken warm", that is, the decoction should be filtered out immediately after boiling, and then drunk when it is dried to 30 -37 degrees Celsius at room temperature; Pills and powdered Chinese patent medicines should be taken with warm water, which is also a warm service. Traditional Chinese medicine for dispelling cold should be taken while it is hot. After taking it, you can eat some hot porridge and hot water to help the medicine. Drugs that detoxify and clear away heat, especially Chinese medicines that relieve summer heat, have better effects. In southern China, some "herbal tea" that is often drunk in summer actually belongs to a kind of traditional Chinese medicine. As the name implies, many herbal teas are drunk cold, and it is better to drink cold.

Myth 9: Muscle will become fat if you don't exercise.

For people who spend three or four days a week doing physical exercise, if they stop exercising, will their muscles get fat? Health care guru Donna Richardson Yule said: "This will not happen. Muscle is muscle and fat is fat. There is no mutual transformation between the two. " Muscle is a relatively dense substance, and fat is relatively dense. When you stop exercising, your muscles will become a little slack, but they will not become fat.

Common health misconceptions 3 What health knowledge is easily misunderstood?

1, calcium supplementation can improve health.

Everyone's height will be affected by congenital factors, but some people want to make their height higher through acquired efforts, so they want to eat a lot of foods with high calcium content or calcium tablets. In fact, if you blindly supplement calcium, it may also cause a certain burden on the kidneys. It is recommended to follow the professional guidance of doctors.

2. Morning exercise is the best.

A day's work lies in the morning. Some people think getting up early in the morning is the best way to exercise, so they often see people running outside in the morning. In fact, for people with cardiovascular diseases, it is best not to run in the morning. In addition, if you run in the early morning, your blood sugar may be very low, which is prone to other accidents.

3, a lot of tonic

Some people, especially middle-aged people, are easy to listen to some advertisements outside and buy a lot of health products. In fact, I don't know whether these health care products are useful or not, and I'm not very clear. There are many examples that tell us that eating too much of these health care products may not achieve the desired effect, and may also be harmful to the body. Therefore, for supplements, it is still necessary to take formal channels, such as following the doctor's advice and listening to the side door, which may not achieve the effect of health care.

Vegetarian food is the healthiest.

It is said that eating more fruits and vegetables is the healthiest. Indeed, these green fruits and vegetables are very beneficial to our intestinal health, especially in keeping away from tumors. But if we simply advocate vegetarianism and don't eat some meat, it may lead to insufficient nutrition. Because some substances that the human body needs need to be supplemented by eating meat. We can increase the proportion of vegetarian food intake, but at the same time, meat should also keep up.

5. Treatment depends on diet therapy

Some people are sick and don't like to see a doctor. They just want to keep healthy and treat diseases by eating relevant and useful food. For example, some people like to boil celery into juice to lower blood pressure. In fact, these foods may have a certain effect on these diseases, but they are very slight. Therefore, when we are sick, we'd better see a doctor, which is the most direct and effective way. Dietotherapy tends to play the role of daily prevention.

A positive person must have a pioneering attitude towards life. At the same time, I have a certain understanding of my physical condition and a correct concept of health preservation. Avoid these wrong health knowledge, let's stick to the healthy way and live healthier and healthier.