Fatigue

Key facts Fatigue is when you feel exhausted all the time. It can impact your daily living, and your mental and emotional state. Stress, anxiety, depression, viruses, or sleep problems usually cause fatigue. Non-medical treatments may be effective in treating fatigue, like cognitive behavioural therapy. You should see your doctor if fatigue continues for more than 2 weeks. What is fatigue? Fatigue is not the same as feeling just tired or sleepy, although there is a link. When you feel fatigued, you have no energy, to the point that it affects your daily living, and your mental and emotional state.