According to Berkeley Wellness, there’s evidence that a daily aspirin “protects people already diagnosed with cardiovascular disease (CVD).” However, there is insufficient evidence that a daily low-dose aspirin is as effective for primary prevention; it is not as necessarily effective for people who have “not been diagnosed with CVD.” Additionally, high BMI may also alter the way aspirin is metabolized, further complicating the data. Finally, there’s evidence that suddenly stopping aspirin can actually increase the risk of a heart attack or stroke. Thus, not everyone should be taking a daily low-dose aspirin - consult your doctor!