<human>: Is it safe to take aspirin if you've had a heart attack?
<bot>: Aspirin is generally considered safe for most people, including those who have had a heart attack. It can reduce the risk of further cardiovascular events, such as stroke or heart attack, but it may also increase the risk of bleeding in certain people. Talk to your doctor before taking aspirin and be sure to follow their advice about when and how often to take it.