Running is not recommended when fever appears in cold and flu, cold and flu is an acute upper respiratory tract infection of the mucous membrane inflammatory reaction, and the body’s immune response is relatively strong, the body temperature appears to rise gradually, the body will consume a lot of heat and physical energy. If running at this time will aggravate the consumption of physical energy, so that the body feels more fatigue, dizziness, more obvious symptoms, not conducive to the relief of colds and fever. In addition, if in the process of running may at any time blowing wind, cold, will reduce the patient’s resistance to aggravate the condition, so the cold, fever can be appropriate bed rest, appropriate to give symptomatic treatment of drugs.