Time spent working rotating night shift and risk of heart disease

http://www.eurekalert.org/pub_releases/2016-04/tjnj-tsw042216.php

Public Release: 26-Apr-2016
Time spent working rotating night shift and risk of heart disease
The JAMA Network Journals

Among female registered nurses, working a rotating night shift for 5 years or more was associated with a small increase in the risk of coronary heart disease, according to a study appearing in the April 26 issue of JAMA.

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In the NHS, the association between duration of shift work and CHD was stronger in the first half of follow-up than in the second half, suggesting waning risk after cessation of shift work. Longer time since quitting shift work was associated with decreased CHD risk among shift workers in the NHS2.

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