The exercise time of young people should be controlled within five times a week, each time 1-2 hours. This can make the body repair well. Suggestion: It is good to exercise every day, but don't choose some strenuous exercise.

It's best for the elderly to run less than three times a week, and we'd better exercise by walking the rest of the time.

The key to doing aerobic exercise is to persist for more than 30 minutes, but at the same time, we should pay attention to grasping the bull's eye rate, so as to achieve better results. If you are running, it is recommended to rest the next day and not run continuously. Finally, pay attention to diet. Eat less, but don't skip every meal and exercise on an empty stomach.

Precautions for sports:

Don't eat within 50 minutes before and after exercise, you can add some water appropriately, keep the indoor temperature at about 20 degrees, and don't have strong winds blowing directly to the practitioners. Indoor light is suitable, neither too bright nor too dark. To reduce the difficulty for the first time, the heart rate should be controlled at 60- 100 beats/min. If allowed, people with chronic physical diseases should be accompanied by private teachers or family members.

Studies by British physiologists Anna Firth and John Harding show that eating sweets on an empty stomach will damage the body's absorption of various protein. They often put all kinds of protein in solutions with high sugar content, so they will find that sugar will slowly combine with protein, which will change the molecular structure of protein and reduce the nutritional value of protein.

References:

Sports-Baidu Encyclopedia