Health claim
“Sleeping 8 hours every night restores testosterone levels to optimal ranges.”
Claim checked — mixed / earlyHigh riskhormones
Evidence Summary
Some evidence supports this, but findings are inconsistent or limited in scope.
Research shows adequate sleep (7–9 hours) supports healthy testosterone levels, but simply sleeping 8 hours does not consistently restore testosterone to optimal ranges for all men, as levels are influenced by multiple factors.
Extracted from
How to Optimise your health for a better performanceJames Bellis
The video outlines a personal routine of daily habits the creator claims improve overall health and performance.
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