Fatigue is a state of being without energy for a prolonged period of time. [1][2] Fatigue is used in two contexts: in the medical sense, and in the sense of normal tiredness.

Apr 18, 2023 · Fatigue is a term used to describe an overall feeling of tiredness or a lack of energy. Learn about over 30 possible causes, from stress to taking certain medications.

Nov 12, 2025 · Fatigue is a lingering tiredness that is constant and limiting. With fatigue, you have unexplained, persistent, and relapsing exhaustion. It's similar to how you feel when you have …

Apr 13, 2023 · Many factors can lead to fatigue, including health conditions, medications and lifestyle habits. If you’ve been feeling overly tired for more than a few days, reach out to your …

Feb 11, 2023 · 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.

Nov 3, 2025 · Explore the causes of fatigue, its symptoms, and treatments. Find out how to boost energy and improve your well-being.

Jul 1, 2025 · Fatigue refers to a common mental or physical state of extreme tiredness and lack of energy. Learn more about the causes and treatments here.

Fatigue is generally defined as a feeling of lack of energy and motivation that can be physical, mental, or both. Fatigue is not the same as drowsiness, but the desire to sleep may …

Apr 12, 2023 · When you feel fatigued, it can be tough to make it through the day. Here's what can cause tiredness and fatigue, and what you can do to boost your energy.

Dec 10, 2020 · Fatigue is extreme tiredness, lack of energy, or weariness that can be caused by many different conditions. Learn more about fatigue, causes, diagnosis and treatments.