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Why do fourth-grade science examination questions reasonably arrange work and rest time?
It is particularly important to arrange work and rest time reasonably in work, study and life. Lenin once said, "People who can't rest can't work." Only after a good rest can the human body have enough energy to study and work and improve efficiency. Reasonable arrangement of children's work and rest time will make people feel happy. Therefore, we should pay special attention to the problem of work and rest time and realize the importance of reasonable work and rest.

The best rest time for the body

The best time to get up: 5~6 am is the "climax" of human biological clock. When your body temperature rises, you will be full of energy when you get up.

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 gastric lavage and preventing thrombosis. Drinking a glass of water before meals 1 hour is helpful to the secretion of digestive juice and promote appetite; Drinking water before going to bed can dilute the blood and make the circulation smooth.

Best working time: 65438+ 00 am to 3 pm, with the highest working efficiency. Generally speaking, the morning is suitable for mental work and the afternoon is suitable for manual work.

The best time to eat fruit: eating fruit before meals 1 hour is beneficial and harmless, and its nutrients are most easily absorbed 2 hours after meals.

The best time to drink milk: Milk contains an ingredient that has hypnotic and sedative effects, so drinking a glass of milk before going to bed can not only supplement nutrition, but also help sleep.

In addition, active health care is "active". Observe your breathing and pulse more at ordinary times; Temperature, blood pressure, etc. It should also be checked regularly; Pay attention to rest when you are not tired.

The best lunch break: the activity ability of the human brain is low around 1 in the afternoon, and a nap is the best at this time.

Best exercise time: generally after 4 pm, it is the best time for physical exercise. At this time, human endurance is increased, muscle temperature is high, blood viscosity is the smallest, and joints are the most flexible.

The best time to lose weight: about 1 hour after meals, walking slowly for 20 minutes, which is beneficial to burn calories and lose weight.

The best time to brush your teeth: it should be carried out within 3 minutes after meals, so that acidic substances produced by bacteria decomposing food residues in your mouth will corrode and dissolve human enamel. At this time, the brushing effect is the best.

Let the body "charge" in time to avoid excessive fatigue; When the psychological endurance is poor, we should adjust our mentality in time and relieve the pressure at any time; Don't wait for symptoms to appear when various nutrients are lacking, but pay attention to supplementing them in peacetime.