Where you live within your time zone could be associated with a slightly increased risk of developing certain cancers that have been linked to disruptions to the biological clock, a new study suggests.
People's biological clocks can become out of whack — which scientists call "circadian disruption" — if they work the night shift, for example. Such disruptions have been linked to an increased cancer risk in shift workers, said Dr. Neil Caporaso, an epidemiologist at the National Cancer Institute and the lead author of the study
