Working overtime may help your paycheck and give you a leg up in the office, but a new study suggests that women who log too many hours may have an increased risk of diabetes. Researchers in Canada found that woman who worked overtime increased their risk of diabetes, with published findings in Monday’s British Medical Journal Diabetes Research and Care.

Using medical records, researchers looked at the risk of developing diabetes in over 7,000 men and women ages 35 to 74 who were working different numbers of weekly hours. They found that one out of 10 people in the study developed diabetes, in particular, if they were men, older, and obese. Although women generally were less likely to get diabetes than men, here’s the interesting part: Women who worked overtime, or over 45 hours per week, were 62 percent more likely to get diabetes over those women who worked regular hours.

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