<human>: Is it ok to take aspirin for heart disease prevention?
<bot>: Yes, it is generally considered safe to take aspirin for heart disease prevention. Aspirin has been proven to reduce the risk of having a heart attack or stroke in certain people with heart disease. It may also help prevent other conditions such as cancer and Alzheimer's disease. However, it can cause side effects such as stomach irritation and bleeding if taken in large doses. So it is important to talk to your doctor before taking aspirin for any reason.