There are two possible approaches to tackling insomnia. The first is to eliminate those factors that cause insomnia. This is the real treatment because insomnia is invariably a symptom of some other problem. The second approach, which is unfortunately more popular, is the treatment of sleeping problem that insomnia is isolated from the factors which include it. To treat sleeping disorders which are, in fact, symptom of the other problem is like treating a temperature instead of, for instance, TB or flu.
There are six factors that can induce sleeping problems:
Diseases of the central nervous system in which the parts of the brain that participate in the regulation of sleep and awakening are damaged. This cause real insomnia but accounts for only a small percentage of all people suffering from sleeping problem.
Disease of internal organs or peripheric nerves where pain or other unpleasant feelings disturb normal sleep. This can be anything from asthma symptom ( or anticipation of them) to muscle cramps, and can deprive you of sleep for a long time.
Neurotic disorders and functional disorders affecting the nervous system. Sufferers from emotional problems (including mood swings), people who are obsessed with disease or those who have a tendency to worry unduly make up this group.
Psychiatric disease can affect sleep centers in the core of the brain, causing very unusual sleep patterns. Schizophrenics may be asleep or awake regardless of day or night, experiencing sort of sleeping fit. Those who suffer from depression also need less sleep than others, despite the fact that they long for sleep as a means of forgetting their worries, at least for a while.
Changes of environment such as changes in the weather, sleeping in a different place, entering a different time zone and new working shifts can cause temporary sleep problem.
Drug abuse, whether medical or illegal.