
Why do I feel weak and listless all over?
I've been feeling extremely tired and listless all day today, as if I've lost all my strength, and my overall condition isn't very good. I'd like to ask, what causes general weakness and lack of energy?

General weakness and lack of energy may be caused by various factors, mainly including the following aspects:
1. Sleep deprivation: Sleep helps the body and brain rest. Insufficient sleep prevents the body from fully recovering, leading to symptoms such as general weakness and lack of energy.
2. Depression: Patients with depression often experience significant fatigue, lack of interest and motivation, and may also suffer from memory loss and an inability to feel pleasure.
3. Nutritional deficiencies: Prolonged poor eating habits may lead to a lack of essential nutrients in the body, thereby affecting normal bodily functions and mental state.
4. Overexertion: Although moderate exercise is beneficial to health, excessive physical activity can cause physical fatigue and excessive energy consumption, resulting in symptoms of weakness and low energy.
5. Medical conditions: Certain chronic diseases, such as liver disease, thyroid dysfunction, anemia, heart failure, as well as disorders of the nervous system, mental health, circulatory system, and endocrine system, can all cause general weakness and low energy.
If this condition persists and affects daily life, it is important to seek medical attention promptly.