Insomnia

Insomnia (or sleeplessness) is most often defined by an individual's report of sleeping difficulties. While the term is sometimes used in sleep literature to describe a disorder demonstrated by polysomnographic evidence of disturbed sleep, insomnia is often defined as a positive response to either of two questions: "Do you experience difficulty sleeping?" or "Do you have difficulty falling or staying asleep?"

Thus, insomnia is most often thought of as both a sign and a symptom that can accompany several sleep, medical, and psychiatric disorders, characterized by persistent difficulty falling asleep and/or staying asleep or sleep of poor quality. Insomnia is typically followed by functional impairment while awake. One definition of insomnia is difficulties initiating and/or maintaining sleep, or nonrestorative sleep, associated with impairments of daytime functioning or marked distress for more than 1 month."

Insomnia can be grouped into primary and secondary, or comorbid, insomnia. Primary insomnia is a sleep disorder not attributable to a medical, psychiatric, or environmental cause. A complete diagnosis will differentiate between:

This text uses material from Wikipedia licensed under CC BY-SA

Latest Spotlight News

Screen women for chlamydia, gonorrhea, experts say

(HealthDay)—All sexually active women should be screened for two of the most common sexually transmitted infections: chlamydia and gonorrhea, according to new recommendations from the U.S. Preventive Services ...

Brain encodes time and place of taste memory

Have you ever eaten something totally new and it made you sick? Don't give up; if you try the same food in a different place, your brain will be more "forgiving" of the new attempt. In a new study conducted ...

Noninvasive devices may help migraines, FDA says

(HealthDay)—Two new prescription devices approved by the U.S. Food and Drug Administration (FDA) may provide some relief for people with migraine headaches who don't tolerate migraine medications well, ...

Airway muscle-on-a-chip mimics asthma

The majority of drugs used to treat asthma today are the same ones that were used 50 years ago. New drugs are urgently needed to treat this chronic respiratory disease, which causes nearly 25 million people ...