What is lack of energy?
Lack of energy can be described as tiredness, weariness, lethargy or fatigue. It can be accompanied by depression, decreased motivation, or apathy. Lack of energy can be a normal response to inadequate sleep, overexertion, overworking, stress, lack of exercise, or boredom. When part of a normal response, lack of energy often resolves with rest, adequate sleep, stress management, and good nutrition.
Persistent lack of energy that does not resolve with self-care may be an indication of an underlying physical or psychological disorder. Common causes include allergies and asthma, anemia, cancer and its treatments, chronic pain, heart disease, infection, depression, eating disorders, grief, sleeping disorders, thyroid problems, medication side effects, alcohol use, or drug use.
