Clinical Medicine 2011, Vol 11, No 3: 278–81 but produce chronic insomnia in only a
minority (the predisposed). It also recognises that behavioural (perpetuating) factors can …

Insomnia is among the most frequent health complaints in medical practice and the most
common of all sleep disorders. It is associated with significant psychological distress …

Is insomnia a clinical entity in its own right or is it simply a symptom of an underlying medical
or psychological disorder? The widely held view among many clinicians and researchers is …

In the early 1980s, insomnia was thought to be a symptom, not a disorder. After two decades
or more of sleep research and sleep medicine, insomnia is considered a distinct nosological …

Background: Insomnia is a common condition affecting individuals of various ages. It is
diagnosed on the basis of a self-reported complaint of poor sleep quality concomitant with …

Insomnia is the most common sleep problem affecting nearly one-third of the population as
either a primary or comorbid condition. Insomnia has been defined as both a symptom and a …

including the progression and remission of untreated incident insomnia, is critical to
assessing the public health burden and developing feasible clinical strategies for this …

Patients with insomnia complain of problems with sleep onset or sleep maintenance or early
morning awakenings, or a combination of these, despite adequate opportunity and …

Insomnia poses significant challenges to public health. It is a common condition associated
with marked impairment in function and quality of life, psychiatric and physical morbidity, and …

Insomnia, defined by difficulty falling asleep or remaining asleep, early morning awakening
and/or non-restorative sleep, and daytime consequences, is an important public health issue …