ScienceContemporaryUnited Stateshigh confidence

About 805,000 people in the United States have a heart attack each year, with 605,000 being first heart attacks and 200,000 occurring in people who already had a heart attack.

Notes on verification

Figures match CDC, NIH/NHLBI, and AHA statistical reports; numbers are internally consistent and corroborated by multiple independent public health sources. [tier=silver indep_score=0.925 clusters=2 claim_tier=notable]

Sources