Wrong. Expert research has confirmed that in a year, the air is cleanest only in summer and autumn, and the air pollution is the most serious in winter and the first month or two in spring; The air is cleaner at noon and afternoon during the day, and the air pollution is more serious in the morning and evening. The peak time of pollution is from 7 pm to 7 am.
So it is not good to exercise in the morning.
So when is the best time to exercise?
Avoid the air pollution peak at six or seven in the morning in the first month or two of winter and spring.
In summer and autumn, the sun comes out early and you can exercise at five or six o'clock.
Usually, you can choose 10 in the morning, do exercises at 3 or 4 pm or do other sports. At this time, the air is cleaner and more beneficial to health.
It is best not to exercise outdoors in foggy mornings. Due to air pollution, fog contains many substances harmful to human body. When people do strenuous activities such as long-distance running in foggy days, some sensitive parts of the body will come into contact with these harmful substances and be inhaled in large quantities, which may easily cause tracheitis, laryngitis, conjunctivitis and allergic diseases. So on foggy mornings, we can do morning exercises indoors instead of going outdoors.
(2) Some people are used to exercising on an empty stomach in the morning, while others advocate physical exercise after meals in the evening. When is the best time to exercise? We think it is more appropriate to start exercising half an hour or an hour after breakfast or dinner.
Exercise before meals may cause blood sugar fluctuations, hypoglycemia may occur because of delayed meals, and hyperglycemia may occur because of no medication. Of course, it may also be due to Su Mujie's reaction that blood sugar is low first and then high, so it is best to put exercise time after meals.
In order to avoid affecting the function of digestive system, it is best to do physical exercise more than half an hour after meals. Physical exercise after meals is worth advocating, because most people in our country eat more dinner, and most people just watch newspapers or TV programs after dinner, and rarely do physical activities, which is very unfavorable for lowering blood sugar and losing weight.
/~ tyhz/tiyu changshi/shenmishihouyundongho . htm
/new/200507 14 154357/index . shtml