Insomnia (trouble falling asleep or staying asleep) is a common problem. It can cause
daytime tiredness and sleepiness and difficulty paying attention at school or being alert at work. Insomnia can begin at an early
age and affects people of all ages. Insomnia can be transient (short-term) and related to a specific
condition like stress or travel, or it can be a chronic (long-term) problem that persists
for many months and may be caused by another medical problem.
The May 21, 2003, issue of JAMA includes an article about insomnia, its causes,
and its treatments.