Women On Rotating Night-Shifts At Increased Risk Of Type 2 Diabetes, Weight Gain

Don't rotate.

In women, there is a positive association between rotating night shift work and the risk of developing type 2 diabetes and, furthermore, long duration of shift work may be associated with greater weight gain. These findings from a study by Frank Hu and colleagues from Harvard School of Public Health in Boston, USA, published in this week's PLoS Medicine, are of potential public health significance as a large proportion of the working population is involved in some kind of permanent night and rotating night shift work.

The authors used data from the Nurses' Health Study I (NHS I - established in 1976, and which included 121704 women) and the Nurses' Health Study II (NHS II - established in 1989, and which included 116677 women), and found that in NHS I, 6,165 women developed type 2 diabetes and in NHS II 3,961 women developed type 2 diabetes. Using statistical models, the authors found that the duration of rotating night shift work was strongly associated with an increased risk of type 2 diabetes in both cohorts and that the risks of women developing type 2 diabetes, increased with the numbers of years working rotating shifts. However, these associations were slightly weaker after the authors took other factors into consideration.

"...[T]hese associations were slightly weaker after the authors took other factors into consideration," like how stupid this is.

All that matters are the Calories.

There would be zero weight gain in the absence of more Calories in than out.

Period.