The clinical symptoms of body aches and weakness are due to the following reasons: 1. Consider whether the cold is caused by catching a cold, especially when the cold is accompanied by fever, this symptom may be more obvious, of course, in addition to this symptom, the cold will also be accompanied by headache, nasal congestion, runny nose, sore throat, cough and other clinical symptoms. For this reason, the symptoms can be relieved as long as you pay attention to rest, drink more water and take appropriate cold medication. 2. Consider that if you don’t exercise much and suddenly participate in strenuous activities or overexert yourself, the anaerobic enzymes in the body will be strengthened, resulting in a large amount of lactic acid accumulation in the muscles. The symptoms will be relieved if you take rest and avoid strain and take a hot bath. 3. Consider whether there is an infectious disease, chronic hepatitis will also appear the symptoms of body aches and weakness. So, if there is muscle pain and weakness in the absence of exercise, and the symptoms are not significantly relieved after rest, it is advisable to seek medical attention to clarify the diagnosis.