Aspirin is a potent inhibitor and, therefore, an interrupter of platelet activation during this kind of event. If taken early at the beginning of a heart attack aspirin can significantly reduce mortality. In the setting of a suspected heart attack, 325 mg of aspirin is recommended. After a heart attack, 81mg of aspirin is recommended for life to prevent, or at the very least, reduce the risk of another heart attack from happening. It is also proven that an 81 mg aspirin daily in men over 55 and women over 60 years of age reduces the risk of a first heart attack. Aspirin is, therefore, a simple and cost effective treatment at the time of a heart attack and can also be a simple and effective use of prevention.