Night-shift work may cause diabetes

Night-shift work may cause diabetes
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Night-shift work may cause diabetes, Shift work can raise the odds of developing type 2 diabetes, with the risk seemingly greatest among men and those working rotating shift patterns, a new study has warned.

Night-shift work may cause diabetes Shift work can raise the odds of developing type 2 diabetes, with the risk seemingly greatest among men and those working rotating shift patterns, a new study has warned.Previous research has suggested links between working shifts and a heightened risk of various health problems, including digestive disorders and cardiovascular disease. But whether diabetes can be added to the list has not been clear.

The authors therefore trawled through scientific research databases, looking for relevant observational studies assessing associations between shift work and diabetes risk.They retrieved 12 international studies out of a potential total of 448, involving more than 226,500 participants, 14,600 of whom had diabetes.When they pooled all the results together they calculated that any period of shift work was associated with a 9 per cent increased risk of developing diabetes compared with working normal office hours.This heightened risk rose to 37 per cent for men, after further analysis to look at the potential effects of gender, study design, study location, job, shift schedule, body mass index (BMI), family history of diabetes and physical activity levels.Daytime levels of the male hormone testosterone are controlled by the internal body clock, so it's possible that repeated disruption may affect this, researchers said, pointing to research implicating low male hormone levels in insulin resistance and diabetes.

Most shift patterns, except mixed and evening shifts, were associated with a heightened risk of the disease compared with those working normal office hours. Other research has linked shift work to weight gain and increased appetite, both of which are risk factors for diabetes, and shift work may also disturb cholesterol levels and blood pressure.

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