A large number of clinical observations and experimental studies have proved that human life, survival and activities have periodic and rhythmic laws. Since scientists discovered the mystery of the human biological clock, they are also studying how to keep fit according to the internal laws of the human body. There are mainly the following points: First, the best time to get up. 5-6 am is the biological clock.

"High tide", when the body temperature rises, you will wake up refreshed.

Second, the best drinking time. Drinking water after getting up can not only replenish the water consumed overnight, but also dilute the blood, which has the functions of washing the gastrointestinal tract and preventing thrombosis. Drinking water in the morning 10 and around 3 pm can replenish the water lost by sweating and urination at work and prevent acidification of the human body; Drinking a glass of water before meals 1 hour is helpful to the secretion of digestive juice and promote diet; Drinking water before going to bed can dilute the blood and make the circulation smooth.

Third, the best use of brain time. At 8 o'clock in the morning, the brain has rigorous and meticulous thinking ability; 10 am is full of energy; The most sensitive response is at 2 pm; Memory is strongest at 8 pm.

Fourth, the best working hours. The work efficiency is the highest from 10 to 3 pm. Generally speaking, the morning is suitable for mental work and the afternoon is suitable for manual work.

Fifth, the best injection time. It is generally advisable to choose 9 am, when the body is the least sensitive to pain.

Sixth, the best lunch break. In the afternoon 1 or so, people's brain activity ability is low, so taking a nap is the most suitable time.

Seven, the best exercise time. Avoid 6-7 am in the first two months of winter and spring, and 5-6 am in summer and autumn. The fresh air and cool climate are good opportunities for exercise. Usually after 9: 00 a.m. to 4: 00 p.m., doing aerobic exercise is good for the body, because at this time, the muscle temperature is high, the viscosity is the smallest, and the joints are the most flexible.

Eight, the best weight loss time. About 45 minutes after a meal, walking for 20 minutes at a speed of 4.8 kilometers per hour will burn the fastest calories and help you lose weight.

Nine, the best brushing time. It should be completed within 3 minutes after each meal, because acidic substances produced by bacteria in the mouth decomposing sucrose and starch in food residues will corrode and dissolve human enamel, and this process usually begins after 3 minutes after meals.

Ten, the best time to eat fruit. Eating fruit before meals 1 hour is beneficial and harmless; Eating fruit 2 hours after a meal is most easily absorbed by the small intestine.

Eleven, the best time to drink milk. Milk contains a component that has hypnotic and sedative effects, so the best time to drink milk is before going to bed, which can supplement nutrition and help sleep.

Twelve, the best sleep time. The body's biological clock appears "low tide" at night10-1. Therefore, the best time to sleep should be 9- 10 at night. If you don't fall asleep after 1 1 at night, it will be more difficult to fall asleep after 12. Middle-aged and old friends, do you want to be energetic, healthy and live a long life? Please follow the laws of human biological clock. Getting up on time, eating on time, studying or working on time, sleeping on time, and forming the habit of working and sleeping on time are the requirements for improving your quality of life and immunity. Long-term persistence is of great benefit.