Based on the available information from the Mayo Clinic and Johns Hopkins Medicine, aspirin can be used to help prevent heart attacks and strokes in certain individuals. However, it is important to consult with a healthcare provider before starting a daily aspirin regimen, as it is not appropriate for everyone.

For individuals who have had a heart attack or stroke, or who have undergone bypass surgery or angioplasty, a healthcare provider may recommend a daily low-dose aspirin regimen. Low-dose aspirin typically refers to a dosage of 81 milligrams (mg) per day.

For individuals who have not had a heart attack or stroke, but who are at increased risk due to factors such as age, high blood pressure, or smoking, a healthcare provider may also recommend a daily low-dose aspirin regimen. However, the benefits of aspirin therapy must be weighed against the potential risks, such as an increased risk of bleeding.

It is important to note that aspirin can interact with other medications and should be taken under the guidance of a healthcare provider. Additionally, aspirin should not be given to children or teenagers who have or are recovering from chickenpox or flu-like symptoms, as it can increase the risk of Reye's syndrome, a rare but potentially fatal condition.

In summary, the ideal aspirin dosage for heart health varies depending on an individual's medical history and risk factors. A healthcare provider can provide guidance on whether aspirin therapy is appropriate and recommend an appropriate dosage.

Sources:

* <https://www.mayoclinic.org/diseases-conditions/heart-disease/in-depth/daily-aspirin-therapy/art-20046797>
* <https://www.hopkinsmedicine.org/health/wellness-and-prevention/is-taking-aspirin-good-for-your-heart>
* <https://www.drugpatentwatch.com/p/tradename/ASPIRIN>