Bob Longwell News Today : Breaking News, Live Updates & Top Stories | Vimarsana

day as you say. there is no way to avoid it. it is very small amounts. reporter: this radiation biologist says exposure comes from a variety of sources. flying in an airplane. increased radiation because of the altitude because our atmosphere shields us from radiation. so if you get up high enough you get a higher dose. reporter: according to the american nuclear society flying exposes you to radiation. watching an old-fashioned t.v., one with a tube exposes you to 10. getting your teeth x-rayed 5. a mammogram 420. you always have to think of radiation in terms of risk and benefit. there is risk in driving a car. there is a risk in radiation. reporter: the radiation we received walking down the street in our daily lives is called background radiation. not much we can do about it. but the radiation we get through medical procedures is called radiation. there has to be more benefit than there is risk. i mean, that s the way we look at it. which is why wome ....

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