Gary Brecka explains why 8 hours of sleep isn't enough if your sleep schedule is inconsistent. Recent research shows irregular sleep-wake times raise cardiovascular risk even with adequate duration. Sleep optimization requires both consistent timing and sufficient hours.
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What if you're already sleeping 7 or 8 hours a night and you're still not getting the full benefit of that sleep? For years, the conversation around sleep has been almost entirely about duration, and that data is still completely valid, but it's incomplete. The research now tells us with extraordinary clarity that the consistency with when you sleep matters just as much as how long you sleep. You could be sleeping 8 hours a night and still be dramatically increasing your cardiovascular risk simply because you're sleeping those 8 hours at different times each day. Sleep optimization is comprehensive. Fixing one piece of it won't make the whole system function the way it should. This series of major studies published in the last 2 years has brought a second variable into sharp focus, and it turns out this variable may be just as important as how long you sleep. That variable is— Ultimate Human.