Precautions against freezing weather

Matters needing attention in freezing weather actually include several changes in water temperature, especially the cold current in muscle weather. Secondly, due to the sudden drop of temperature, we should pay attention to keep warm, and cotton-padded jacket down jacket should be the main clothing. Third, we should pay attention to health, especially those with weak cardiovascular and cerebrovascular diseases, and pay attention to preventing cardiovascular and cerebrovascular diseases caused by sudden drop in temperature. Fourth, we should pay attention to eating food with high energy and high calorie as much as possible. .