Talk with your doctor. It doesn't reduce the risk of "heart disease" per se. It reduces the chances of your blood clotting and thus can reduce the chance of having a heart attack
. But this comes at a cost of a slightly increased risk of bleeding---for instance, bleeding into the gut, into a bruise
or even into the head, the latter of which is called a stroke
, which can be serious. In some people, an aspirin
a day is a good thing. But in some people, the risks outweigh the benefits, and only a doctor who knows the patient should give advice on this matter.