Gary BreckaHuman Biologist & Longevity Innovator

Why 8 Hours of Sleep Isn’t Working

16 Apr 2026 · 0 min

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In this opening segment, Gary Brecka challenges the common belief that simply sleeping 7–8 hours guarantees optimal rest. He points out that many people still feel unrefreshed despite meeting recommended sleep duration. Brecka introduces recent research—major studies published within the last two years—that highlight a second, equally critical factor: the consistency of sleep timing. He emphasizes that when you go to bed and wake up each day can be just as important as how long you sleep, setting the stage for a deeper exploration of sleep health.

What if you're already sleeping 7 or 8 hours a night and you're still not getting the full benefit of that sleep? What if the number of hours isn't the only variable that matters? A 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 when you sleep, specifically how consistent that timing is from day to day.