> the research showed that too little or too much sleep was associated with increased risk of dying – approximately 65 minutes more than, or under, the average nightly sleep duration (7 hours in this sample) was associated with a 10 per cent increased risk of dying over the course of the study
This seems inaccurate on the high end. Under 6 hours has repeatedly shown to be bad. But over 8 hrs and 5 min? If the average REM sleep cycle is 1.5 hrs, then your only "perfect" window is 7.5 hrs of sleep - 9 would be detrimental?
This seems inaccurate on the high end. Under 6 hours has repeatedly shown to be bad. But over 8 hrs and 5 min? If the average REM sleep cycle is 1.5 hrs, then your only "perfect" window is 7.5 hrs of sleep - 9 would be detrimental?
Other data suggests otherwise:
https://www.nichd.nih.gov/health/topics/sleep/conditioninfo/...