correlational
Analysis v1
Strong Support

Taking melatonin for sleep over a long period might be connected to a much higher chance of being hospitalized for heart failure compared to not taking it. The data shows that about 19% of long-term users ended up in the hospital for heart issues, compared to only 6.6% of those who didn't take it.

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Pro
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Against

Evidence from Studies

Supporting (1)

59

Community contributions welcome

This large study found that people with insomnia who took melatonin long-term were much more likely to be hospitalized for heart failure compared to those who didn't take it. The data shows a clear link between long-term melatonin use and serious heart problems.

Contradicting (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.