Radiation Exposure: 5 Things You Need To Know

Evacuees in Fukushima grew more fearful Monday of radiation exposure as Japan experienced its second explosion at a nuclear power plant. This morning on "Good Morning America," chief health and medical editor Dr. Richard Besser discussed some potential hazards of radiation. Here are five facts to help you better understand radiation exposure. Radiation can be found naturally and nearly everywhere in the environment. Heat, light and microwaves all emit some form of radiation. Uranium,...Full Story