Cause Of Insomnia

The National Institute of Health defines insomnia as, "the perception
or complaint of inadequate sleep" and classifies it as three types;
transient, intermittent and chronic. Most people have suffered from
insomnia at one time or other in its transient (one day to a month) or
intermittent (occasional) form. Around 10% of the population suffers
from chronic insomnia. Elderly persons, menopausal women and pregnant
women are more likely to be more affected than others.
Causes of insomnia are classified into three broad categories - life
style, physical health disorders and mental health disorders. Life
style can be subdivided into what we eat, sleeping environment and
sleep schedule. Alcohol, caffeine, nicotine, some allergic foods and
medications like decongestants, bronchodilators, anti hypertensives,
anti depressants, diuretics, anti epileptics, anti arrhythmic, thyroid
medications and histamine H2 inhibitors are known to cause insomnia.
Environmental noise, extreme temperatures, change of sleeping area,
uncomfortable bed and insects like mosquitoes are the main
environmental factors that prevent sleep. Varying work schedules like
shift work, jet lag, long afternoon naps and recreational activities
are also causes that upset a good night's sleep....

http://groups.google.com/group/insomniager