What Is Insomnia?
Insomnia (in-SOM-ne-ah) is a common condition in
which you have trouble falling or staying asleep. This condition can range from
mild to severe, depending on how often it occurs and for how long.
Insomnia can be chronic (ongoing) or acute
(short-term). Chronic insomnia means having symptoms at least 3 nights a week
for more than a month. Acute insomnia lasts for less time.
Some people who have insomnia may have trouble
falling asleep. Other people may fall asleep easily but wake up too soon.
Others may have trouble with both falling asleep and staying asleep.
As a result, insomnia may cause you to get too
little sleep or have poor-quality sleep. You may not feel refreshed when you
wake up.
Overview
There are two types of insomnia. The most common
type is called secondary or comorbid insomnia. This type of insomnia is a
symptom or side effect of some other problem.
More than 8 out of 10 people who have insomnia are
believed to have secondary insomnia. Certain medical conditions, medicines,
sleep disorders, and substances can cause secondary insomnia.
In contrast, primary insomnia isn't due to a medical
problem, medicines, or other substances. It is its own disorder. A number of
life changes can trigger primary insomnia, including long-lasting stress and
emotional upset.
Insomnia can cause excessive daytime sleepiness and
a lack of energy. It also can make you feel anxious, depressed, or irritable.
You may have trouble focusing on tasks, paying attention, learning, and
remembering. This can prevent you from doing your best at work or school.
Insomnia also can cause other serious problems. For
example, you may feel drowsy while driving, which could lead to an
accident.
Outlook
Secondary insomnia often resolves or improves
without treatment if you can stop its causeespecially if you can correct
the problem soon after it starts. For example, if caffeine is causing your
insomnia, stopping or limiting your intake of the substance may cause your
insomnia to go away.
Lifestyle changes, including better sleep habits,
often help relieve acute insomnia. For chronic insomnia, your doctor may
recommend a type of counseling called cognitive-behavioral therapy or
medicines.
March 2009 |