What is the best time to exercise in the morning?

In fact, it is not recommended to exercise in the morning, because the blood sugar level in the body is relatively low in the early morning. Exercising at this time can easily cause the body to faint. It is okay to exercise after 9 am, but you should drink a glass of honey water before exercising to avoid hypoglycemia.

Exercising in the morning is not good for your health. Even if you need to exercise in the morning, do it after 9 o'clock.

Here are some reasons why it’s not a good idea to exercise early in the morning:

1. The time when the human body's biological clock is at its lowest is early morning.

In the early morning, people's body temperature is the lowest, pulse is the slowest, and physiological functions are the worst. If you exercise at this time, it is equivalent to suddenly entering a more intense exercise state from a resting state or a state before awakening. This is a kind of "reckless advance" and the gain will not outweigh the loss. The muscles and joints of the human body rapidly go from a relaxed state to a tense and strong state, and it is difficult for a while to adapt.

2. The most dangerous time for the human body is early morning.

The World Health Organization has calculated that deaths in the early morning worldwide account for 60% of the total number of deaths in a day. Early morning is not only the peak time for heart attacks, but also the peak time for sudden cardiac death. Exercising in the early morning, especially when the amount of exercise is high, is equivalent to suddenly increasing the burden on the cardiovascular system during the most dangerous time of the human body.

In the vast majority of people with normal blood pressure and about 70% of hypertensive patients, nighttime blood pressure is about 10% lower than daytime blood pressure. The specific situation is: people's blood pressure lowers when they sleep at night, and reaches the lowest level at about 2 to 3 in the morning. After getting up in the morning (6 o'clock), blood pressure rises sharply, reaching or approaching the peak at about 8 to 9 o'clock. The blood pressure at this time is even 40 to 50 mmHg higher than at night. This phenomenon is medically called "morning hypertension (morning peak of blood pressure)." This is a dangerous moment for patients with hypertension because their sympathetic nerves are in an excited state, their heart rate increases, and their blood pressure rises. In addition, after not drinking water all night, the patient loses a lot of water through breathing, and the blood viscosity increases. Moreover, if the patient has hypertension and atherosclerotic plaques, the plaques are prone to rupture, leading to myocardial infarction, cerebral infarction, etc.

Studies have shown that the risk of stroke in patients with hypertension in the early morning is three times that at other times; the incidence of myocardial infarction at 9 a.m. is three times higher than that at 9 p.m.; and the peak incidence of sudden cardiac death is also between 9 a.m. and 12 p.m. Therefore, the key to controlling blood pressure in a day lies in the morning. Exercising right after getting up early in the morning will undoubtedly increase the possibility of unexpected events.

3. The worst air quality is in the early morning .

Meteorological experts say that the fresh feeling of the air in the early morning is a "misperception" of people. This is because people emit a lot of waste gas such as carbon dioxide in the house overnight, especially in winter, when the doors and windows are closed tightly and the air is polluted.

The air outside is better than that indoors, and the temperature is also lower than that indoors, so you will feel the air is fresher when you go out in the early morning. But the fact is that the air outside is worst in the early morning.

In the early morning, plants absorb oxygen and exhale large amounts of carbon dioxide after a night of metabolism, causing the concentration of carbon dioxide to increase in places with many trees, flowers and plants. Various harmful substances such as nitrogen oxides and hydrocarbons produced by burning coal and automobile exhaust emissions gather in the air. Breathing this polluted air will have a harmful effect on the human body. After the sun comes out, these pollutants will be diluted and decomposed in the air to a certain extent, and the air quality will be relatively better. Therefore, generally

It is not suitable to do morning exercises before the sun comes out.

4. Heavy fog is most likely to occur in the early morning.

Heavy fog is prone to occur in the mornings in autumn, winter and spring. On foggy days, the atmospheric stratification is stable, making it difficult for air to exchange and diffuse, which aggravates air pollution. According to the measurement, various acids, alkalis, salts, amines, phenols, dust, pathogenic microorganisms and other harmful substances in the droplets can

The proportion of substances is dozens of times higher than usual. If the human body stays in the fog for a long time, it will inhale harmful substances, consume nutrients, affect the supply of oxygen, cause internal damage to the body, induce or aggravate the disease, and cause symptoms such as chest tightness and difficulty breathing. In severe cases, it can cause rhinitis, pneumonia, tracheitis, conjunctivitis and other diseases.

For those who have the habit of exercising in the morning, we remind you to pay attention to three points: first, the amount of exercise in the morning should not be too much; second, it is best to do it after 9 am; third, drink some water before exercising to prevent blood viscosity and high blood lipids as well as loss of water through sweating during exercise.