descriptive
Analysis v1
Strong Support
Some lifelong endurance athletes have scar tissue in their heart muscle—like from a silent heart attack—even though they never had chest pain, and none of the sedentary men in the study had this.
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Evidence from Studies
Supporting (1)
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Community contributions welcome
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The study found that male athletes who trained for decades were more likely to have scar tissue in their hearts—like from a past heart attack—while non-athletes didn’t, suggesting intense, long-term exercise might quietly damage the heart.
Contradicting (0)
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Community contributions welcome
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.