Your habit of working for long hours may be harmful your heart, cautions a recent study.
The study says that working for more than 40 hours a week can increase the risk of developing coronary heart disease or can narrow the blood vessels that supply blood and oxygen to the heart.
The senior author of the study from the Department of Preventive Medicine, College of Medicine, Seoul National University, Dr Yun-Chul Hong said "the longer hours employees worked, the higher their chances of developing coronary heart disease within 10 years, with those working 61 to 70 hours having a 42% increased likelihood of developing the disease, those working 71 to 80 hours having a 63% increased likelihood, and those working more than 80 hours having a 94% increased likelihood".
A relation between long working hours and risk of coronary heart disease was evaluated by Framingham risk score on 8,350 Korean people.
The participants of the study were asked about there working hours and health condition. They were also made to complete physical examinations and biochemical measurements which were necessary for FRS estimation.
To check the association between working hours and the 10-year risk for CHD estimated by FRS, multiple logistic regression was done.
The 10-year risk was found to be significantly higher in participants who worked for longer hours than those who worked for 31-40 hours in a week.
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