The Claim

Short sleep duration (≤6 hours per night) is associated with a 22% increased risk of ischemic heart disease, and this association suggests that insufficient sleep may contribute to cardiovascular risk through biological pathways such as metabolic dysregulation and inflammation.

Source: Causal association between sleep duration, daytime napping, sleep disorders and ischemic heart disease: A systematic review and meta‑analysis of Mendelian randomization studies

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
39score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Correlation
1 study reviewed
In plain English

People who sleep six hours or less each night are more likely to develop heart disease, and this might be because not enough sleep messes up their metabolism and causes body inflammation.

See the scientific wording

Short sleep duration (≤6 hours per night) is associated with a 22% increased risk of ischemic heart disease, suggesting that insufficient sleep may contribute to cardiovascular risk through biological pathways such as metabolic dysregulation and inflammation.

What the research says

1 study

  1. Study: Causal association between sleep duration, daytime napping, sleep disorders and ischemic heart disease: A systematic review and meta‑analysis of Mendelian randomization studies

    This study found that people who sleep 6 hours or less per night are 22% more likely to get heart disease than those who sleep longer, which matches what the claim says.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

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