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STUDY: Half breast cancers tied to environment
As many as half of all new breast cancers may be foisted upon woman by pollutants in the environment, triggered by such items as bisphenol-A lining tin cans or radiation from early mammograms, according to a review of recent science by two breast cancer groups.
Their report, "State of the Evidence," released Tuesday, buttresses what many researchers increasingly suspect: that repeated low doses — particularly in early childhood — to chemicals normally considered harmless can have a profound effect.
It also suggests that, for half of the 211,240 woman diagnosed with breast cancer in 2005, lifestyle choices and genetics played no role.