2. Drink a cup of mint tea. According to Health Times, mint tea can not only refresh the mind, relieve stress, but also help digestion. The method of mint tea is: choose 5~ 10 mint leaves, wash them with cold water, put them in a teacup, add 200 ml of hot water, then cover the teacup and drink them when mint tea gives off fragrance.

3. Spray some water mist on your face.

Doing so can not only refresh the mind, but also replenish water to the face.

4. Chatting with friends.

When dozing off, you might as well chat with friends, such as exchanging learning content.

5. Plan the workload in advance.

If you know in advance that you will be sleepy, you can arrange your work as early as possible and put some trivial work in the time when you may be sleepy, such as writing a diary.

6. Drink some coffee and hot drinks

If things are not finished when you are sleepy, you can drink some stimulating drinks such as coffee or tea to refresh yourself, but you should pay attention to hot drinks, and the concentration should not be too high to avoid hurting your stomach.

7. Take a deep breath

Brain oxygen demand will increase when staying up late, which is easy to cause endogenous hypoxia. You should always take a deep breath.

Extended data

the harm of staying up late

1, increasing the risk of breast cancer.

Chinese medicine believes that yang is weak and yin is cold at night. If you stay up late for a long time and don't pay attention to cold protection at night, it will increase the internal cold in the body and lead to breast cancer induced by blood deficiency.

2, increase the risk of gastric cancer.

The human gastrointestinal tract also needs rest to achieve self-maintenance. Staying up late will greatly reduce the effect of gastrointestinal rest, affect the ability of gastrointestinal repair and protection, and weaken gastrointestinal function. In the long run, gastritis, gastric ulcer, gastric cancer and other diseases will follow. In addition, some people are used to eating late at night, which will increase the burden on the stomach and lead to stomach problems.

3, reduce immunity

Chinese medicine believes that "blood returns to the liver when people lie down". At night 1 1 till 3 am, it is the best stage for the liver to play its role in storing blood and detoxifying. This period of time can not guarantee regular rest, which will damage liver qi and reduce resistance and immunity over time. Therefore, people who maintain health and nourish the liver must sleep before 1 1 at night, which is conducive to blood returning to the liver to detoxify.

4, easy to have nightmares

Li Fang, chief physician of respiratory medicine, said that nightmares usually come from the stress of life, and sometimes they may be a signal of health problems. Dreams are often about being unable to breathe. Sleep apnea will destroy your sleep because of lack of oxygen.

5, easy to get fat

People who sleep less than 6.5 hours a day are more likely to be obese. Lack of sleep will make the human body secrete more "hunger hormones", which will make people overeat and lead to obesity. Human adrenocortical hormone and growth hormone are secreted at night. Often staying up late can also lead to endocrine disorders, thus forming endocrine disorders and obesity.

6, prone to depression

Experts point out that watching computer or TV for a long time will make people tired, listless and lose appetite. More importantly, the quality of sleep has turned red, making them unable to sleep during the day and night. After that, the body's long-term fatigue and discomfort are mixed with some emotions of work and life pressure. Once insomnia occurs, it will fall into fear of life and exaggerate the pain in the details of life, leading to long-term depression.

7. It is harmful to the brain.

According to experts, staying up late often leads to memory loss, slow response, headache and insomnia. This is because staying up late leads to "overtime" of brain nerves, and the result of nerve failure is negative "slack", which causes chronic damage to brain nerves.

8, affect the development of infants and young children.

Growth hormone secreted by hypothalamus is mainly secreted at night 10 to morning 1. About 60 ~ 90 minutes after children fall asleep, the secretion increases obviously. Children staying up late for a long time will inevitably affect the normal secretion of growth hormone, which is not good for physical development, especially height.

Baidu encyclopedia-staying up late

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