Rabu, 19 Oktober 2011

Prevention

Cancer prevention is defined as active measures to decrease the risk of cancer.[39] The vast majority of cancer risk factors are due to environmental (including lifestyle) factors, and many of these factors are controllable. Thus, cancer is largely considered a preventable disease.[40] Greater than 30% of cancer is considered preventable by avoiding risk factors including: tobaccooverweight / obesity, an insufficient diet,physical inactivityalcoholsexually transmitted infections, and air pollution.[41] Not all environmental causes can be prevented. For example, exposure to naturally occurring background radiation cannot be prevented.

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