"The question Millions of people take a lowdose aspirin daily in hopes of reducing their chances of having a heart attack. For women might aspirin also help prevent breast cancer This study The researchers analyzed data on  women most in their early s who had no history of breast cancer. About  percent of the women reported taking a lowdose aspirin  milligrams  percent took ibuprofen  percent took fullstrength aspirin  mg and about  percent took a COX inhibitor or another nonsteroidal antiinflammatory drug NSAID. All were taking the medication at least three times a week. Over seven years  women got a breastcancer diagnosis. Those taking lowdose aspirin were  percent less likely to have developed any type of breast cancer compared with women who took no NSAID. They were  percent less likely to have developed the most common type breast cancer that is hormonereceptorpositive and HERnegative. The study did not find similar links between regulardose aspirin or other NSAIDs and the risk for breast cancer. Certain adults should take a daily baby aspirin expert panel says https_term.fdd  Who may be affected Women. About  of every  women in the United States will develop breast cancer at some point. Those who take a daily lowdose aspirin also called a baby aspirin usually do so to prevent cardiovascular disease the leading cause of death for women older than . Aspirin has been shown to help keep blood from clotting which can help prevent heart attacks and ischemic stroke the type caused by a blocked blood vessel in the brain. However aspirin can increase the risk for internal bleeding so women should talk with their doctors before starting a lowdose aspirin regimen for any reason. Caveats The researchers suggested that the difference in results between low and regulardose aspirin may have been attributable to most women taking lowdose aspirin more often than three times a week even daily for cardiovascular protection as opposed to moresporadic use of regulardose aspirin for pain relief. Hormone therapy and alcohol use were more prevalent among the participants than normal both are considered risk factors for breast cancer and may have affected the results. Data on aspirin and other NSAID usage came from the womens responses on questionnaires. Most of the participants were white. Find this study May  in Breast Cancer Research breastcancerresearch.biomedcentral.com httpsurldefense.proofpoint.comvurluhttpA__breastDcancerDresearch.biomedcentral.com_articles_._sDDDdDwQFAgcRAhzPLrCAqeJdrcQiUVEwFYoMRqGDAXQ_puwtYjgrGgivkKNHTVnLjjXizEdTOTAeiQkcgtAvxxZaomsqDhoDQuZ_NPBOAolYDwpIqzPwmGdAwhNNsIEuxJYwQGZEtz_vYCsFwIADLCvjDQXFNUUge. Learn more about Information on breast cancer is available at cancer.gov httpcancer.gov. Learn more about the benefits and risks of aspirin at heart.org httpheart.org search for aspirin. The research described in Quick Study comes from credible peerreviewed journals."