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.