IBNLive.com | Shift workers at increased risk of heart attack Times of India Indiatimes|The Times of India|The Economic Times|. More. More .... Among the 2011935 people in the study, more than 17359 had some kind of coronary event, 6598 had myocardial infarctions (heart attacks), and 1854 had ischaemic strokes caused by lack of ... Night shifts can raise risk of heart attack by 40 pc |