Daily low-dose or baby aspirin has been known to decrease the chance of having a heart attack or stroke since the 1970s, but it was announced that people over the age of 60 should not be taking aspirin daily. Recent evidence suggests that taking aspirin daily could cause life-threatening side effects that increase with age, including stomach ulcers, severe liver damage or liver disease, and bleeding in the stomach, intestine, and brain. After 60, the risk of bleeding cancels the benefits of preventing heart disease for those on a daily aspirin regimen. Talk to your doctor about the risks and benefits of aspirin therapy before you begin.