Insomnia is a sleeping disorder and persons who are suffering from this condition have difficulties to fall and/or stay asleep during night.
There are two types of insomnia: primary and secondary insomnia which are determined by the cause.
Primary Insomnia or sleeplessness is a sleeping problem manifested with poor quality sleep and this condition is not related to any disease or health issue.
Secondary Insomnia is a sleep problem that is caused by underlying health problems including medical conditions, medications, sleep disorders and certain substances.
In addition to that, it is important to mention that insomnia can be classified according to the length of the condition. The insomnia can be acute (short-term) or chronic (ongoing).
Acute Insomnia is a short-term problem that occurs from time to time and usually lasts several days or weeks. The most common causes of short-term insomnia are situations such as stress at work, family pressures or a traumatic event such as loss of loved person, divorce, etc. Very often, acute insomnia is brought on by emotional and physical distress, jet lag that can interrupt the sleep cycle, or as a side-effect of use of medications.