Video: Study explores link between sleep, breast cancer

June 23, 2012: Hundreds of thousands of women in the U.S. will be diagnosed with breast cancer this year. NBC’s Dr. Nancy Snyderman has the story. (Nightly News)Irregular sleep patterns could increase the risk for breast cancer, a new study suggests. NBC’s Dr. Nancy Snyderman has the story. (Nightly News)


Leave a Reply

Read the original at NBCNews.com: Cancer.