Chronic pain (CP) seriously affects the patient's daily activities and quality of life, but few
studies on CP have considered its effects on the patient's social and family environment. In …

Ample evidence suggests that sleep and pain are related. However, many questions remain
about the direction of causality in their association, as well as mechanisms that may account …

Objectives: A relationship between sleep and pain is well established. A better
understanding of the mechanisms that link sleep and pain intensity is urgently needed to …

Objective We aimed to investigate the 10-year trend in the prevalence of insomnia
symptoms, insomnia cases, and use of hypnotic agents in the adult Norwegian population …

Introduction Chronic pain represents a global health problem with a considerable economic
burden. The relation of alcohol intake and chronic pain conditions was assessed in several …

Objective The objective of this review is to answer three questions: 1) How are chronic pain
severity and pain duration affected in patients with chronic pain and sleep disturbances that …

Objective Among rheumatoid arthritis (RA) patients, the intensity of pain may be out of
proportion to the severity of peripheral inflammation. This observation suggests that …

Aims: To investigate the prevalence of sleep disturbance and psychologic distress in a
population of Chinese patients with temporomandibular disorders (TMD) and whether sleep …

Background Cluster headache (CH) is a primary headache disorder which is characterized
by circadian timing of headache attacks, usually at nighttime, in around two thirds of patients …

Chronic craniofacial pain involves the head, face and oral cavity and is associated with
significant morbidity and high levels of health care utilization. A bidirectional relationship is …