Aspirin acts on the platelets, which are the blood clotting cells of the body. It makes them less “sticky” – less likely to form a blood clot.
If a cholesterol plaque inside a blood vessel ruptures, the body’s natural reaction is to form a clot in that area. This can lead to heart attacks (a total blockage of blood flow down a coronary artery) or stroke.
The U.S. Preventive Services Task Force (USPSTF) recommends men with no history of heart disease or stroke who are 45 to 79 years old use aspirin to prevent a heart attack.