correlational
Analysis v1
Strong Support

After the 1960s, fewer people died from heart disease, and this was likely because better health habits and medical care helped stop plaque from building up in arteries and kept early blockages from getting worse.

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Evidence from Studies

Supporting (1)

1

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The study says fewer people died of heart disease after the 1960s because better habits (like quitting smoking) and medical treatments stopped plaque from building up in arteries and kept it from getting worse — which is exactly what the claim says.

Contradicting (0)

0

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No contradicting evidence found

Gold Standard Evidence Needed

According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.