Some causes of<unk>  are treatable, and evaluation is directed towards identifying these treatable causes. Treatable causes of<unk>  include: anemia, pain, emotional distress, sleep disturbances, nutritional disturbances, decreased physical fitness and activity, side effects from medications (e.g., sedatives), abuse of alcohol or other substances. Additionally, other medical conditions, such as infections, heart disease, or endocrine dysfunction (e.g., hot flashes), can cause<unk> , and may also need treatment. Definition The National Comprehensive<unk>  Network defines<unk>  as "a distressing persistent, subjective sense of physical, emotional and/or cognitive tiredness or exhaustion<unk>  to<unk>  or<unk>  treatment that is not proportional to recent activity and interferes with usual functioning".<unk>  is a chronic<unk>  (persistent<unk>  not relieved by rest), but it is not<unk>  to chronic<unk>  syndrome.
Cancer-related fatigue
Idiopathic chronic fatigue
Functional somatic syndrome
AIDS fatigue
Chronic fatigue syndrome
Postmenopausal confusion
Food addiction
Exercise addiction