By Dr. Brian McDonough

PHILADELPHIA (CBS) – Over the years there have been numerous studies looking at the health risks of shift work. Now a new study finds that in women, there is an association between rotating night shift work and the risk of developing type 2 diabetes.

The study also finds that long duration of shift work may be associated with greater weight gain.

The Harvard researchers who looked at this are concerned because a significant number of people are involved in some kind of permanent night and rotating night shift work. The researchers also found that the risks of women developing type 2 diabetes, increased with the numbers of years working rotating shifts.

Another way of looking at it is that weight gain and reduction in exercise are two key factors that need to be considered.

Reported By Dr. Brian McDonough, KYW Newsradio Medical Editor

Dr. Brian McDonough