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'''Insomnia''' is a [[sleep]] disorder where a person experience poor sleep or has trouble [[dream]]ing. Insomnia may include the following:
* Difficulty falling asleep
* Difficulty remaining asleep or waking up many times during the night (not necessarily having any difficulty falling asleep)
* Waking up too early in the morning
* Not feeling refreshed after a night's sleep or waking up feeling "cranky"
In all of these instances the person feels tired the next day, or feels as if he or she did not have enough sleep or as if he or she is on drugs. Poor sleep for any length of time can lead to [[mood]] disturbances, lack of [[motivation]], decreased [[attention span]], trouble with [[concentration]], low levels of [[energy]], and increased [[fatigue]]. Approximately three-fifths of the average person's life is spent sleeping. Healthy sleep is vital to the human body and important for the optimal functioning of the brain and other organs.
==Types of Insomnia==
There are three types of insomnia:
* Transient insomnia - sleep difficulties that last for a few days; there is little or no evidence of impairment of functioning during the day.
* Moderate insomnia - sleep difficulties that last for less than a month, that mildly affect functioning during the day, together with feelings of irritability and fatigue
* Chronic insomnia - sleep difficulties that last for more than a month, that severely impair functioning during the day, and cause strong feelings of restlessness, [[irritability]], [[anxiety]], and [[fatigue]].
* Difficulty falling asleep
* Difficulty remaining asleep or waking up many times during the night (not necessarily having any difficulty falling asleep)
* Waking up too early in the morning
* Not feeling refreshed after a night's sleep or waking up feeling "cranky"
In all of these instances the person feels tired the next day, or feels as if he or she did not have enough sleep or as if he or she is on drugs. Poor sleep for any length of time can lead to [[mood]] disturbances, lack of [[motivation]], decreased [[attention span]], trouble with [[concentration]], low levels of [[energy]], and increased [[fatigue]]. Approximately three-fifths of the average person's life is spent sleeping. Healthy sleep is vital to the human body and important for the optimal functioning of the brain and other organs.
==Types of Insomnia==
There are three types of insomnia:
* Transient insomnia - sleep difficulties that last for a few days; there is little or no evidence of impairment of functioning during the day.
* Moderate insomnia - sleep difficulties that last for less than a month, that mildly affect functioning during the day, together with feelings of irritability and fatigue
* Chronic insomnia - sleep difficulties that last for more than a month, that severely impair functioning during the day, and cause strong feelings of restlessness, [[irritability]], [[anxiety]], and [[fatigue]].