Artificial night time lighting is associated with an increased risk of prostate cancer in men. According to research by Professor Boris A. Portnov and colleagues of the University of Haifa, exposure to artificial light sources at night increases the risk of prostate cancer the more a man is exposed. ...


My husband sleeps by a little radio with lighted clock which is pretty bright. Would that be considered a hazard? He is 71 yrs old and has done this for about 20 years or more.