Insomnia refers to inadequate or poor-quality sleep. Insomnia may be due to difficulty falling asleep, or problems with middle-of-the-night or very early morning awakening.

More

Find answers in our in-depth report on insomnia:

• How can I reduce my risk?
• How is it diagnosed?
• How is it treated?
• What are the risk factors?
• What are the screening tests?
• What are the symptoms?
• What is insomnia?
• What should I ask my healthcare provider about insomnia?

If you've had a sleepless night, you know it's debilitating. But you can get help catching those Z's.

Taking supplements of the hormone melatonin has been purported to relieve insomnia, but the evidence for its effectiveness is mixed. Should you try it?

Despite differences in beliefs about how hypnosis works, there is a general consensus that in many cases, it can be a powerful tool. Read more here.

• Depression
• Stress

• Insomnia