Generally speaking, it is not advisable to exercise after catching a cold; it is usually recommended to rest instead. This is because after catching a cold, a person's immune system is often weakened, commonly accompanied by symptoms like fatigue, tiredness, and decreased appetite. If one exercises during this time, it will inevitably increase the body's consumption, further reducing the body's resistance, weakening the body even more, and hindering the recovery from the illness. Moreover, exercise increases lung capacity, leading to a higher volume of air passing through the airways, which can aggravate symptoms such as throat discomfort and cough associated with a cold. From this perspective, it is also unsuitable to exercise.