http://static.howstuffworks.com/gif/aspirin-ch.jpgSTUDY SHOWS WOMEN WHO HAVE BREAST CANCER HAVE A 50% REDUCTION WHEN TAKING ASPIRIN. STUDIES BY Journal of Clinical Oncology SAY ITS THE NUMBER OF DAYS A WEEK TAKING ASPIRIN THAT BOOSTED BREAST CANCER SURVIVAL BUT ITS NOT RECOMMENDED FOR BREAST CANCER TREATMENT.