Healthier Me: Night Shift Could Increase Cancer Risk - Valley News Live - KVLY/KXJB - Fargo/Grand Forks

In Friday's Healthier Me, working at night may increase a woman's risk of developing ovarian cancer.

After asking a group of more than 1,000 women were asked to detail their work history, researchers found that women over 50 who worked night shifts had a 24% higher risk of advanced ovarian cancer -- and were 49% more likely to have early stages of the disease -- than women with day shifts

Researchers think this could be because light suppresses the body's production of melatonin, which regulates reproductive hormones.