‘Chronic pain linked to partners of people with depression’, http://www.eurekalert.org/pub_releases/2016-08/uoe-cpl081516.php, University of Edinburgh, EurekAlert! AAAS (16-AUG-2016).

Common cause

Chronic pain is a common cause of disability but little is known about what causes it. Scientists say the research will bring a new understanding of why some people suffer from the condition and not others.