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Fatigue is a feeling of tiredness, weakness or lack of energy. It can be caused by lifestyle factors, such as poor sleep or stress, or by various conditions, such as anemia, depression or COVID-19.
Ongoing fatigue affects quality of life and state of mind. Most of the time fatigue can be traced to one or more lifestyle issues, such as poor sleep habits or lack of exercise. Fatigue can be caused by a medicine or linked to depression.
ME/CFS is a disorder that causes extreme fatigue that lasts for at least six months. It may be triggered by a combination of factors, such as infections, trauma or genetics. There's no single test or cure, but treatment can help ease symptoms.
Cancer fatigue can be caused by the cancer itself, treatment side effects, emotions, pain, sleep problems, nutrition and other factors. Learn how to recognize, manage and treat cancer fatigue and when to seek medical help.
Dizziness is a term for various sensations, such as feeling faint, woozy, weak or unsteady. Vertigo is the false sense of spinning or moving, often caused by inner ear problems. Learn about the possible causes, diagnosis and treatment of dizziness and vertigo.
Anemia is a condition of low red blood cells or hemoglobin that can cause tiredness, weakness and shortness of breath. Learn about the types, causes and treatments of anemia, including iron deficiency anemia, the most common form.
As the name implies, iron deficiency anemia is due to insufficient iron. Without enough iron, your body can't produce enough of a substance in red blood cells that enables them to carry oxygen (hemoglobin). As a result, iron deficiency anemia may leave you tired and short of breath.
Fibromyalgia is a disorder that causes widespread musculoskeletal pain, fatigue, sleep problems and cognitive difficulties. It can also affect your joints, but it is not a form of arthritis. Learn more about the possible triggers, risk factors and complications of fibromyalgia.
What's considered low blood pressure for one person might be OK for someone else though. Low blood pressure might cause no symptoms that you notice. Or it might cause dizziness and fainting. Sometimes, low blood pressure can be life-threatening. The causes of low blood pressure include dehydration and other serious medical conditions.
Stress can cause various physical, mental and behavioral problems, such as headache, anxiety, overeating, muscle tension, fatigue, memory loss and more. Learn how to manage stress and when to seek help from a health care provider or a counselor.