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The answer of primary school students' health knowledge
The winter climate is cold and dry, and it is prone to respiratory diseases, such as fever, bronchitis and asthma, as well as gastropathy, gastrorrhagia, cerebral hemorrhage or cerebral thrombosis, angina pectoris and some winter infectious diseases.

Ten ways of keeping in good health can help you spend the winter safely and benefit your physical and mental health.

1. Insist on washing your face with cold water: cold water can refresh your mind and exercise your cold resistance, which can not only prevent colds, but also beautify your face and treat chronic rhinitis. If you can cooperate with auricle, Tang Yin, sun and cheek massage, the effect will be better.

2. Drink warm water in the morning: drink a cup of warm water after washing your face and brushing your teeth. On the one hand, it can warm the body and clean the gastrointestinal tract, on the other hand, it can dilute blood, prevent cerebral thrombosis and myocardial ischemia, and at the same time, it can maintain cell permeability and promote cell metabolism.

3. Appropriate outdoor activities: Outdoor activities in winter are very important to prevent frostbite. Doing outdoor exercise or breathing 15 ~ 20 times is beneficial to the enhancement of lung function and plays a role in preventing and treating bronchitis and asthma. The lungs open to the skin, and through outdoor activities, the oxygen supply of the human body can be increased and the disease resistance can be improved.

4. Diet and medicated diet supplements: Winter is the season to nourish the body. It is very beneficial to choose medicated diet tonic according to your own situation, which can increase the ability of resisting heat and cold, strengthen nutrient absorption and promote health.

5. Massage the scalp at noon: the cerebral blood flow during the day is less than that at night 1/5, so it is appropriate to take a nap for 30-40 minutes at noon, and then massage Baihui, Fengchi and Tang Yin with your fingers, or massage the scalp with a comb, which can improve the blood circulation of the head and eliminate fatigue and dizziness. Besides, washing your face with cold water will refresh you.

6. Drink tea in the afternoon: Tea is one of people's best drinks, which can prevent and fight cancer. Tea contains a variety of vitamins and trace elements needed by human body, which can play a health care role. However, people who take medicine for stomach diseases or anemia should not drink tea, especially strong tea, which can be replaced by mineral water or boiled water. It is important to replenish water in the afternoon.

7. Take a bath and rub your chest and back: Medical scientists have found that rubbing your chest and back can improve your immune function, help you keep fit and prevent diseases.

8. Do waist exercises at night: Japanese experts have proved that doing waist exercises with both hands can stimulate waist acupoints, help strengthen the function of internal organs and maintain normal metabolism, and obese people can lose weight by doing waist exercises.

9. Hot water bath to protect feet: There are many acupoints along the meridians on the soles of the feet, such as Yongquan point. Through the infiltration of hot water, the body temperature can be raised by 0.2℃, the function of capillaries in the whole body can be improved, and it has the functions of heat preservation and sleep assistance; The foot is called the second heart. Protecting the foot can strengthen the heart, and the expansion and congestion of capillaries can strengthen the heart activity, prevent the occurrence of foot chilblain and reduce skin itching.