The following reasons are usually given for waking up with body aches and pains: 1. having upper respiratory tract infections, influenza, can lead to viral invasion of the nerves and tissues in the body, which can lead to a feeling of muscle aches and pains all over the body, formed by the stimulation of inflammatory metabolites on the surrounding tissues. 2. having strenuous exercise and relatively strenuous work before going to bed can lead to muscles being in a relatively tense, fatigued state, The inflammatory metabolites will stimulate the peripheral nerves and cause soreness all over the body. 3. The coldness will also cause tension in the muscles and soft tissues all over the body and slow down the blood circulation, so the inflammatory metabolites will not be easily metabolized and will stimulate the peripheral nerves and cause soreness. The inflammatory metabolites are not easily metabolized, which can stimulate the peripheral nerves and cause soreness.