Fatigue is extreme tiredness and an inability to perform everyday tasks with your usual amount of energy.
Chronic Fatigue Syndrome-Exams and Tests
Chronic fatigue syndrome (CFS) is hard to diagnose. Fatigue is an extremely common problem, and it can have many other causes. CFS can be diagnosed only by ruling out other conditions. First, your doctor will take your medical history and do a physical ex
Adrenal Fatigue: Is It Real?
Is adrenal fatigue a real condition or not? We look at the pros and cons.
Weakness and Fatigue-Health Tools
Health Tools help you make wise health decisions or take action to improve your health. Actionsets are designed to help people take an active role in managing a health condition. Insomnia: Improving your sleep ...
Weakness and Fatigue-Check Your Symptoms
Check your symptoms of weakness and fatigue.
Why Am I So Tired? Conditions That Cause Fatigue
Learn about conditions that might cause you to feel sluggish during the day, such as anemia, thyroid trouble, sleep apnea, diabetes, heart disease, depression, and menopause.
Get a Good Night's Sleep: Tips for You and Your Family
Sleep deprived again? Simple tips to help you and your family get enough sleep every night.
Find more energy to get through your workday
Learn how to get more energy to get through your workday by changing your diet, your habits or making lifestyle changes.
Always Tired? Your Thyroid May Be to Blame
The thyroid is a small gland with a big job. Here's what you need to know about it.
Do I Have to Live With Fatigue?
As a cancer survivor herself, Dr. Julie Silver knows how hard it is to manage fatigue after cancer treatments.
How Much Sleep Do We Need?
Get the proper amount of sleep to keep your weight in check.
The Best Bedtime for a Good Night's Sleep
What's the best bedtime for you? Sleep specialist, Michael Breus, PhD, says it helps to understand your sleep cycle.
Video: Why You Yawn
A yawn usually signals you’re bored or tired. But could it really be something else?
Slideshows & Images
Slideshow: What to do Today to Sleep Better Tonight
See how to get better sleep with tips about diet, exercise, scheduling, and more.
Slideshow: 12 Causes of Fatigue and How to Fight It
Always tired? WebMD examines causes and fixes for fatigue.
Slideshow: A Visual Guide to Chronic Fatigue Syndrome
Chronic fatigue is a great imitator of other illnesses. Pictures help explain the true symptoms of CFS so people can get the proper diagnosis and treatment.
Slideshow: 10 Ways to Revitalize Your Life
Learn easy ways to fight fatigue, bloating, and stress so you can regain energy. Exercising, a diet with fiber, and more are among top tips in this WebMD slideshow.
Fatigue Quiz: Understanding Acute Fatigue, Chronic Fatigue Syndrome, and More
Take this quiz to test your knowledge of dealing with chronic fatigue and acute: What’s Normal, When to Get Help, treatments and solutions, other conditions that may cause fatigue and more.
Quiz: Myths and Facts About Fatigue
Really tired? Take this quiz to see how much you know about fatigue. Find out about exhaustion symptoms and the cause of your sleepiness.
Sleep Quiz: Why You Need Your ZZZs
Take this quiz and test your knowledge of sleep -- deprivation, insomnia, and nightmares.