2。 Pinch yourself hard.
3。 Ask the person next to you to push yourself, and just push it gently when you sleep in class.
Awakening in science.
My personal experience
One. Drink tea before class
This method is great. I learned it in my senior year. I am allergic to tea. Drinking a little morning tea is refreshing, and it is also effective when you want to sleep in class, although it is impolite to the teacher. But studying is more important, and it is more impolite for you to sleep with the teacher in class. This is the best method I have ever used.
Second, you must do some exercise after class and breathe more in winter. It's better to exercise your muscles and stretch your muscles before drinking tea in the classroom, but it's better if you drink tea outside. Running around after class, that is, running around, is quite good. In senior three, I only walked on the stairs on the fifth floor of the classroom, but the effect was much better than chatting with my classmates outside the classroom.
Third, you must have a good breakfast. You can't have a good morning class. Don't drink milk and eat eggs in the morning. Although many people say these two are the best, it is best for people who can't sleep in the morning to eat steamed bread and drink soybean milk. Milk can help you sleep. I don't want to say more, but eggs can also increase the viscosity of blood and make you want to sleep (I have experienced it personally). But you have another problem. Eating eggs is really good for people. See for yourself, but the milk is not so good. Generally, Asians absorb 40-60% of the nutrition of milk than Europeans. I advise you not to drink milk in the morning. And it will make you want to sleep and drink soy milk. Nutrition is not much worse than milk, and absorption is much better. But you must drink milk at night, which is very good. It can not only supplement calcium, but also help sleep and digestion. Its sleep blowing effect is immediate.
I hope you have a good life. It's good to have something called Xingnao Sticker. I used it all the time when I was a senior in high school, and so did pharmacies! Can be attached to any part of the body. I mainly stick it on my forehead or neck to refresh myself. Suggest a try! What drowsy diseases are teenagers prone to?
We know that people's psychological activities have two processes: excitement and inhibition, which alternate and balance each other. When the cerebral cortex is excited, people are awake; When in the process of inhibition, people are sleepy and fall asleep. The cerebral cortex is repeated along the process of "excitement-inhibition-excitement", which makes people have regular sleep rest and work and study. The time a person needs to sleep is gradually reduced with age. Generally speaking, it is enough for teenagers to sleep 8 ~ 10 hours every night. However, although some teenagers sleep a lot at night, they still want to sleep during the day. Especially in class, I often fall asleep because I can't resist drowsiness. This may be a common morbid sleep phenomenon among teenagers. There are two main types of adolescent periodic bulimia, narcolepsy and narcolepsy.
Teenagers suffer from periodic bulimia and narcolepsy, especially boys. At the time of onset, children are sleepy all day, don't think about food, and sometimes force them to sleep with food in their mouths. This situation usually lasts about 1 week, and then suddenly "wakes up". After waking up, I was refreshed, obviously hungry, and wolfed down my food. At this time, the child's mental activities are all normal, and there are no obstacles to sleep and study. But at the same time next month, the old disease recurred, repeating the scene of last month and healing itself a week later. This happens month after month every year, bringing endless pain to children and their families.
Narcolepsy is also common in teenagers aged 10 ~ 20, mainly because the level of alertness of children is low when they are awake. This situation is particularly prominent in summer afternoons. The performance is that at the beginning, there were waves of sleepiness that repeatedly hit and gradually increased. Although I tried to resist, I finally dozed off. The length of sleep varies from a few minutes to more than ten minutes, and the sleep is not deep and it is easy to be awakened. After waking up, I felt a brief clear feeling in my brain. In this case, I can have multiple attacks every day.
To sum up, adolescent periodic bulimia and narcolepsy are pathological manifestations. The reason is generally believed to be the abnormal function of hypothalamus, but it may also be related to organic diseases such as tumor, inflammation and trauma of hypothalamus. Therefore, when the above-mentioned sleep disorders occur, teenagers should go to the hospital for nervous system examination in time, and can take ritalin, amphetamine and other central stimulants for treatment after eliminating the organic lesions of hypothalamus. As the saying goes, spring is sleepy and autumn is lacking, and spring and autumn are sleepy seasons. In fact, winter and summer are the same. Generally speaking, dozing off is normal, but the teacher will think you don't respect him when he sees you dozing off. . .
Of course, the best way to reduce drowsiness is to listen carefully, as long as you regard what the teacher says as interesting.
But even if it's fun, I will doze off. . . You can try the wind oil to refresh yourself and take a few deep breaths. If there is still no obvious improvement, maybe you are short of calcium. . .
It is also a good way to exercise more and enhance vital capacity.
If all the above methods fail, you should be really sleepy. . . Just poke yourself with something. . . awkward