1, don't open the window for ventilation. In dog days, many people are afraid of the heat, so they close the windows and blow air conditioners indoors. In fact, humid, sultry and poorly ventilated rooms can easily lead to heatstroke, and if the air conditioner is turned on without opening the window for ventilation, the air quality will deteriorate, but it will cause disease.

2, avoid cold air blowing air conditioning cold air blowing on the cervical spine, easy to make the neck and back muscles chills, causing persistent neck cramps, back pain and so on.

3, avoid cold drinks, ice cream, cold drinks, eat properly can relieve the heat, eat too much will hurt the body. Moreover, in summer, the human body's metabolism is fast, and blood vessels are in a state of expansion. Suddenly eating iced drinks leads to rapid contraction of blood vessels, causing blood pressure fluctuations.

4. Avoid not having a rest at noon. Because of the hot weather, sleep will be affected to some extent. It is recommended to take a nap if possible, which can also effectively prevent the occurrence of heart diseases such as coronary heart disease and myocardial infarction.