What should I do if the weather is too stuffy and I have difficulty breathing?

Dyspnea is often caused by lack of oxygen, especially in winter and summer. Now serious pollution is the main cause of hypoxia. If the physique is slightly poor, there will be insufficient gas and difficulty breathing. As an emergency, the elderly or people who have undergone pneumonectomy can rent or buy oxygen cylinders for emergency use, but be careful not to inhale them frequently to avoid dependence. People in poor health should strengthen nutrition and proper physical exercise, take more deep breaths in the morning and evening, and take more walks in places with good air, so as to ensure oxygen supply to the body and relieve breathing difficulties. Long-term persistence is very beneficial to your health!