When the weather is hot, what are the reasons for weakness, numbness and breathlessness?

Mainly because of your deficiency of qi and blood, blood metabolism slows down, low temperature makes blood vessels contract, blood reflux ability weakens, and blood circulation is not smooth! One is the lack of certain vitamins (usually B vitamins B2) in the body, and the other is excessive internal heat or toxins caused by fatigue, which may be a cold, or you are weak and get angry, lack of exercise, and poor sleep quality! Too angry! Or you may be too depressed, drink too much alcohol and tobacco, spend too much time online, have eye diseases, be under too much pressure and be exhausted. In addition, when the temperature and humidity change greatly, people's physical strength will decrease and their resistance will also decrease. The most common symptoms are a series of symptoms of respiratory tract infection, such as cold, cough, dry mouth, stuffy nose, bitter taste, sore throat, fever, slight cold, general aches and headaches. This is due to the inhibition of cardiopulmonary function.