Article, "Sleep More, Burn More Fat"

[darkewaffle]

Source

One group clocked 8.5 hours of sleep per night, and the other logged 5.5 hours of sleep per night (which the authors point out is a "norm" for people in this day and age.) Both groups ate roughly 1,450 calories a day. After two weeks, the people who slept more lost more fat than the group who slept less. More than half of the weight loss during the 8.5 hours of sleep was fat versus only one quarter of the weight loss during the 5.5 hours of sleep.

...the folks who slept less lost more muscle (60% more muscle was lost by the sleep-deprived group.) Those three hours of lost sleep caused a shift in metabolism that made the body want to preserve fat at the expense of muscle.

I'm no expert but it's interesting news to me. I suppose I should start pay more mind to how much sleep I get, I'm one of those who averages a lot closer to 5.5 unfortunately. Though now that I look further the study group was pretty small and the study not very long, still some solid results however.

 

[eits]

i'd imagine it has more to do with increased stress in those who sleep less, which causes an increase in cortisol, therefore more metabolic changes and unhealthy eating.

 

[highland145]

Read somewhere:
awake=80%carbs 20%fat
asleep=80%fat 20%carbs.

 

[SociallyChallenged]

Read somewhere:
awake=80%carbs 20%fat
asleep=80%fat 20%carbs.

Which is not at all true. You burn primarily fat while awake and resting. You don't hit 80% carbs/20% fat until you're around 85-90% of your VO2max.

 

[highland145]

Which is not at all true. You burn primarily fat while awake and resting. You don't hit 80% carbs/20% fat until you're around 85-90% of your VO2max.

Sorry. Not meaning to spread mis-information.

 

[SociallyChallenged]

Sorry. Not meaning to spread mis-information.

It's not your fault. It's just crazy how people come up with these numbers. Your body would have to work crazy hard to get to burning that much carbohydrate 🙂

 

[MrMatt]

It's not your fault. It's just crazy how people come up with these numbers. Your body would have to work crazy hard to get to burning that much carbohydrate 🙂

I personally burn that even at resting, on account of my super-eugenics.

 

[rcpratt]

Interesting study. Personally, sleeping more is always good for me because it's pretty hard to eat when you're asleep.

 

[darkxshade]

I figure if anything, the sleep assists indirectly in fat loss. For example, I doubt I can lift as heavy or run as hard on 5.5 hours of sleep daily vs 8.5. So with more sleep, I am more rested to work out more intensely which the article didn't mention anything about as far as the groups were concerned.

 

[Murloc]

Sleeping enough is healthy, and that's enough.
If you do something good for your body, that you're intended to do, like sleeping normal, it will have repercussions that science hasn't even discovered yet.
Anyway I think it's true, the body is made to work better if you sleep the intended amount of time, not the opposite.