Patients in the afternoon fitness, but the symptoms of insomnia at night, mainly consider the following aspects of the reasons: 1, the afternoon exercise intensity is too large, will lead to the body to release a lot of hormones as well as adrenaline, promote cell metabolism, but easy to make people’s emotions in an excited state. Coupled with the patient’s sympathetic excitement, it is easy to have insomnia at night. 2. If the patient exercises a lot, it is easy to produce some acidic metabolites, which, if not excreted in time, will cause muscle pain, back pain and these uncomfortable symptoms, affecting the patient’s normal sleep. 3. If the exercise is carried out at a high frequency, so that the body’s metabolic rate is too high, it is also easy to cause The body recovers in a state of negative equilibrium. Over time, it is easy to cause insomnia due to persistent excitement of the central nervous system of the patient.