1 less hour of sleep = 1 lb of fat gained 👀

29 Jul 2026 · 1 min

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1:06

In this short fitness monologue, Eric Roberts claims that losing just one hour of sleep can lead to gaining one pound of fat. He explains that sleep deprivation shifts hunger hormones, increasing appetite—especially for sugary and junk foods—and causes people to consume an extra 300–600 calories per night. Additionally, lack of sleep erodes discipline and willpower, making it harder to stick to a calorie deficit, maintain workouts, or resist ordering food delivery. Roberts concludes that for those struggling with diet and exercise, improving sleep duration is a more effective strategy for faster weight‑loss results than pushing harder in the gym.

Chapters

If you lose 1 hour of sleep, that's 1 pound of fat you gain. And I know that's a crazy claim, but stick with me. When you're sleep deprived, a few things happen inside of your body. The first being your hunger hormones get shifted. So automatically you'll have a higher appetite, especially for sugar and junk food. This makes it harder to stick to your calorie deficit. And studies have shown people who get less sleep automatically eat 300 to 600 extra calories. The second thing that happens is your discipline and willpower tank. So it's harder for your brain to make the decision to do hard things like stick to your diet, get your workout in, don't order DoorDash. So if you're watching this and you're trying so hard to do your cardio, work out in the gym harder, stick to your diet, but your sleep sucks, you'll probably see faster results by doing less and sleeping more.