1. Long time not exercise or exercise is not in place, sudden or high intensity exercise to make the body’s metabolic rate increased, the body produces too much lactic acid to make the whole body sore. 2. poor mood, commonly known as the emotional impact. Emotions often affect hormones and neurotransmitters, so that the body feels different from the usual stimuli, affecting the level of metabolism, resulting in aches and pains.3. Viral colds often cause an inflammatory reaction, causing the body to heat, metabolism speed and produce too much lactic acid, so that the person feels the whole body aches and pains.