SILENCE OF THE NIGHT

Why Sleeping in Darkness is Important to Your Health Female night shift workers have a higher risk of developing breast cancer than the rest of the female population. An interesting study in the December 1, 2005 issue of Cancer Research provides new information that might partly explain why this is. Researchers found that sleeping for several hours in nighttime darkness promotes a healthy blood level of a hormone called melatonin, which can significantly suppress the growth and proliferation of breas br, br,