What causes generalized body aches and weakness?

Jul 08, 2024 Source: Cainiu Health
Disease description:

I am 35 years old. Recently, when I woke up in the morning, I found my whole body aching and felt weak. I am worried this may be caused by some illness. Doctor, what could cause whole-body aches and weakness?

Doctor's answer (1)
Dr. Shen Yonghua
The symptom of generalized body aches and weakness may arise from a combination of various physiological and pathological factors. On a physiological level, buildup of lactic acid after vigorous exercise, prolonged physical exhaustion, or insufficient rest can all potentially lead to muscle fatigue and soreness, accompanied by overall weakness. Excessive emotional stress or mental tension may also indirectly cause bodily aches and weakness by affecting the nervous system. From a pathological perspective, infectious diseases such as influenza or the common cold often present with systemic symptoms, including muscle pain and a feeling of weakness; this is the body's natural response as the immune system combats pathogens. Meanwhile, chronic conditions such as anemia and malnutrition may also trigger similar discomfort due to decreased bodily functions. Certain medication side effects or electrolyte imbalances can also affect muscle function, resulting in aches and weakness.