Arrange the snack time reasonably. Snacks should be eaten between meals. Because children and adolescents have faster metabolism than adults, they are prone to slight hunger. Eating snacks properly can prevent hunger and increase nutrition. Especially, many primary and middle school students get up late in the morning, so it is difficult to have enough time to eat breakfast or eat very little breakfast. By the third or fourth class, many people have hunger, dizziness, stomachache, and even fainted in physical education class. Therefore, in some qualified schools, the above phenomenon has basically disappeared by adding meals to students during recess.

Snacks must not be eaten near dinner, otherwise it will affect appetite and hinder dinner; Don't eat snacks before bed. First, eating snacks before going to bed will increase the burden on the stomach and affect sleep. Second, if you don't pay attention to brushing your teeth before going to bed, the food residue left in your teeth will be harmful to your teeth health, which will lead to dental caries over time. Pay special attention to controlling the amount of snacks when watching TV. If you don't control it, it's easy to eat too many snacks unconsciously.

Choose snacks with reliable quality and high nutrition, and control the amount of snacks. There are always different opinions about whether teenagers should eat snacks. One of the important reasons is the quality problem, especially the quality problem of snacks. In recent years, food poisoning cases of primary and middle school students in China are mainly related to product quality. For example, the recent soybean milk poisoning incident in Haicheng, Liaoning Province is due to the fact that anti-nutritional factors such as trypsin inhibitor in active soybean powder have not been completely inactivated, and some people are sensitive to such substances and have symptoms of digestive tract irritation. Therefore, it is very necessary to choose nutritious and reliable food as snacks. Schools and parents should strengthen health education on children's choice of food, and guide children to choose nutritious foods as snacks, such as milk, yogurt, fruits, cakes, floss, beef jerky, dried fruits and other foods.

Eight measures to prevent respiratory infectious diseases in winter

Common respiratory infectious diseases in winter include common cold, influenza, measles, chickenpox, rubella and mumps. It is mainly spread by droplets in the air. Prevention and treatment of respiratory infectious diseases should pay attention to the following matters:

1. Avoid catching a cold. When the human body catches cold, the blood vessels in the respiratory tract contract, the blood supply decreases, the local resistance decreases, and the virus is easy to invade.

2. Purify the environment and keep the indoor air fresh. Open the window regularly to ventilate, keep the air circulating and let the sun shine into the room; You can also fumigate the room with vinegar.

3. Pay attention to the law of life and ensure adequate sleep. Adequate sleep can eliminate fatigue, regulate various functions of the human body and enhance immunity.

4. Supplement nutrition and appropriately increase the intake of water and vitamins.

5. Strengthen exercise and enhance physical fitness. Physical exercise can enhance blood circulation and improve immunity.

6. Strengthen personal hygiene and personal protection.

7. Immune prevention. Before the epidemic season, you can carry out corresponding vaccination, such as influenza, pneumonia, measles, meningitis and other vaccines.

8. Early detection and early treatment. When you have respiratory symptoms, you should seek medical advice in time, avoid taking things seriously, and don't take medicine at will.

How to escape after a fire

The degree and size of the fire are different, and the way to escape is different. Generally speaking, when the fire is large and the smoke on the escape route is heavy, you can escape from the fire scene in a low posture or crawling way, because the smoke usually spreads 30 cm from the ground. In addition, the most important thing is to protect the respiratory tract. Cover your nose and mouth with clothes and wet towels to avoid burning your respiratory tract or choking on smoke. When fleeing, even if you forget valuables, you must never enter the fire scene again to avoid casualties.

How to improve sleep quality

① Follow objective laws: most people in China keep the traditional night before and after, and pay attention to sleep at noon; Westerners, on the other hand, pay attention to being lazy at night and early in the morning and never stop at noon. Either way, as long as the law that suits you is formed, you don't have to change it reluctantly. But the basic needs of sleep are the same as the basic physiological laws. Whether you go to bed early and get up early, or you go to bed late and get up late, the approximate sleep time and sleep cycle are no different. Also, if you can't sleep well one night, don't make up your sleep the next day, so as not to cause a vicious circle.

2 develop good habits: good sleep habits can get the best sleep and achieve the goal of full rest. For example, do what you should do before going to bed, drink a cup of hot milk, take a warm bath, listen to a light music, let the beautiful melody accompany you to sleep, and let your body and mind relax completely.

③ Creating a beautiful environment: The quality of sleep environment directly affects the quality of sleep. Families living in downtown areas should try their best to create a good living environment and reduce sleep interference.

4 Soothe fidgety psychology: Psychological interference is the cause of most people's insomnia. Good sleep is very beneficial to maintain a peaceful mind, a tolerant way of dealing with people and a positive and optimistic life.

People who use computers every day had better soak their hands in warm water.

When playing computer, the most difficult thing is people's fingers, especially those who use laptops. Touching the mouse requires the index finger or middle finger to rotate constantly, and its workload is nearly twice that of using an ordinary computer. After a long time, fingers often feel numb or painful. Once this symptom appears, don't ignore it, which means that your fingers are probably suffering from tendinitis because of fatigue.

I once came into contact with a patient who told me that he always felt a dull pain in his fingers. Asked about his occupation, he works in a design company, sitting in front of a computer every day at work and carrying a laptop at home after work. He also said that he likes to use a laptop because it is convenient and sensitive to touch the mouse. I reminded him that in the process of touching the mouse, not only the fingers will feel muscle fatigue, but also the tendon of the hand will penetrate into the surrounding tendon sheath, causing swelling, thickening and inflammation of the tissue. If you don't rest in time or take treatment measures, it will further bring about the loss of finger function.

In addition to using computers, anyone who has been engaged in fine handwork for a long time may hurt his fingers. Once this happens, you should go to a medical institution immediately, especially if you have finger movement disorder (clinically called "trigger finger"), you should be treated in time.

For people who often use laptops or engage in hand activities, it is very important to prevent finger injuries. One is to reduce the time of continuous hand movement; Second, wash your hands with warm water to avoid cold hands; The third is to adjust tendons with hand fitness balls to increase the elasticity of muscles and ligaments; Fourth, people with conditions can also do hand massage to adjust the blood circulation of their hands in time to ensure their health.