Primary insomnia is a chronic condition with little apparent association with stress or a medical problem. The most common form of primary insomnia is pyschophysiological insomnia. Secondary insomnia is caused by symptoms that accompany a medical condition such as anxiety, depression, or pain. Healthcare providers further classify insomnia according to how long it occurs. Transient insomnia lasts for a few days to a few weeks, and transient insomnia that comes and goes is called intermittent insomnia .
Chronic insomnia occurs on most nights for at least three weeks.
Idiopathic insomnia is insomnia that has no known cause. It usually begins in childhood and is a lifelong condition. Inc. All Rights Reserved.