Too little or too much sleep may be dangerous
The U-Shaped Association between Sleep Duration, All-Cause Mortality and Cardiovascular Risk in a Hispanic/Latino Clinically Based Cohort
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Surprising Findings
Long sleepers (≥9h) had nearly 4x higher mortality risk than short sleepers (2.5x), making oversleeping the bigger killer in this cohort.
Common belief is that short sleep is the bigger threat — but here, sleeping too much was associated with a higher risk, even after controlling for health conditions.
Practical Takeaways
Aim for 6–9 hours of sleep per night — don’t force yourself to sleep longer if you feel rested, and don’t routinely cut below 6.
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Surprising Findings
Long sleepers (≥9h) had nearly 4x higher mortality risk than short sleepers (2.5x), making oversleeping the bigger killer in this cohort.
Common belief is that short sleep is the bigger threat — but here, sleeping too much was associated with a higher risk, even after controlling for health conditions.
Practical Takeaways
Aim for 6–9 hours of sleep per night — don’t force yourself to sleep longer if you feel rested, and don’t routinely cut below 6.
Publication
Journal
Journal of Clinical Medicine
Year
2023
Authors
Mario Henriquez-beltran, J. Dreyse, J. Jorquera, Jorge Jorquera-Díaz, Constanza Salas, Isabel Fernandez-Bussy, G. Labarca
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Claims (6)
If you sleep 8 to 9 hours every night, you’re less likely to have heart problems later on.
People in this group who say they sleep 9 hours or more each night are nearly four times more likely to die from any cause than those who sleep 6 to 9 hours, even when you account for heart problems and sleep apnea.
People who sleep between 6 and 9 hours a night seem to have the lowest risk of heart problems in the next 10 years — those who sleep less or more than that have higher risk, at least in Hispanic/Latino adults.
People in this group who say they sleep 6 hours or less each night are more than twice as likely to die from any cause compared to those who sleep 6 to 9 hours—even if they have heart problems or sleep apnea.
People who say they sleep either too little (6 hours or less) or too much (9 hours or more) tend to have a higher chance of having a heart problem in the next 10 years, compared to those who sleep between 6 and 9 hours — at least in this group of Hispanic/Latino patients.