Why aspirin may be more dangerous for older people

Anywhere from 40% to 60% of older people take daily aspirin to prevent a heart attack or stroke. Studies have shown that low doses of the blood-thinner can significantly lower the risk of heart problems, especially among people who have already had a heart attack or stroke.

But in a study published in the Lancet, researchers say that the risks of aspirin haven’t been properly studied in older people.