Since it became a medicine cabinet staple in the late 1800s, aspirin may be the closest thing we have to a wonder drug. Long used for its ability to treat aches and pains, and to lower the risk of heart attack, new data suggests aspirin may also be the key to preventing or stopping the spread of certain kinds of cancer. While taking a daily regimen of aspirin comes with some risks, Mayo Clinic's Dr. Frank Sinicrope explains how it may help protect you against colorectal, breast, prostate and lung cancers, and why inflammation may be the key. Ian Roth reports. More health and medical news on the Mayo Clinic News Network http://newsnetwork.mayoclinic.org/