An article published in the Journal of Clinical Oncology on February 16, 2010, suggests that regular aspirin use may improve overall survival in breast cancer patients. Studies have shown that aspirin can reduce the risk of distant metastases from breast cancer and reduce the rate of death from breast cancer and other causes of disease. Weekly aspirin use reduced the risk of distant metastases from breast cancer by 43% to 60%, and similarly, patients taking aspirin reduced breast cancer-related mortality by 64% to 71% compared to those not taking the drug. Professor Michelle of Harvard University Medical Center in Boston said, “It is important to note that this is a retrospective analysis, and we need to see if such results are reproducible in other studies.” The mechanism of action of aspirin in improving survival in breast cancer patients will have to be further revealed.