The Claim
In adults with an average age of 62, sleep duration of less than 7 hours per day, as measured by accelerometers, is associated with a 6% higher risk of incident cardiovascular disease and a 29% higher risk of cardiovascular mortality compared to sleep duration of 7–9 hours per day.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
People who sleep less than 7 hours a night are more likely to develop heart problems or die from them compared to those who sleep 7 to 9 hours, based on wearable device data.
See the scientific wording
Sleep duration less than 7 hours per day is associated with a 6% higher risk of incident cardiovascular disease and a 29% higher risk of cardiovascular mortality compared to 7–9 hours of sleep per day, based on accelerometer-measured sleep in adults aged 62 on average.
What the research says
1 studyThis study used wrist devices to track how long people slept and found that those who slept less than 7 hours a night had a higher chance of heart problems and dying from heart disease compared to those who slept 7–9 hours — just like the claim says.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.