About 24 hours after strenuous exercise, there will be immunosuppression. During this time, immune cells will start to "strike" and rest. When a cold virus invades the body, the immune system must fight it. Without immune cells, cold germs naturally run rampant, which is likely to turn a minor cold into viral myocarditis, pneumonia and rheumatism. At the same time, after exercise, the body's metabolism will be more vigorous, and it will consume a lot of sugar, fat and protein. In the body, it weakens the body's resistance. In crowded sports occasions, the "fragile" resistance often cannot withstand any bacterial attack, which aggravates the degree of cold.

Try to rest after a cold, create favorable conditions for the body's resistance, remove toxins from the body by drinking plenty of water, and choose moderate exercise after a cold is cured, so that the muscles and joints that have rested for a while can have an adaptation process.