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-- you probably heard that that got not getting enough sleep can really make you gain weight.
But do you know exactly why it turns -- it's not just because you're awake more hours -- using more energy they're eating more.
And that's packing on the pounds a new study takes a look at a different angle what actually happens to our brains.
When we're sleep deprived and have to make food choices.
Doctor Matthew Walker is the author of -- study he's -- associate professor of psychology and neuroscience.
At the University of California Berkeley he assures that -- well rested so he can do.
The interview -- doc what happens to the brain number sleep deprived and we have to eat.
-- -- two interesting things actually seem to happen.
Firstly the deep centers in the brain the more primal sense is that control our motivations and -- is.
Those regions are actually -- -- increase in their -- activity in response to food items when you're sleep deprived.
And if that perhaps wasn't bad enough but we also found was that -- of parts of the brain particularly regions in what we call the frontal lobe.
Which is sort of like the CEO of the brain to control executive decisions and logical rational choices.
Those parts of the brain actually -- imposed by way of sleep deprivation -- to have this switchover.
In terms of the balance of brain activity.
And as a consequence people started to choose more unhealthy foods they were choosing higher calorie foods.
Ice cream pizza Fries those types of things.
So starting to find -- bring mechanism that may explain there's large population studies that you mentioned finding a link between a lack of sleep and obesity.
Things sound good -- -- options right about this time lunchtime here -- -- -- -- -- he would he really looking at the studying you are putting people through this.
These tests -- you had them not sleep on night in and take a look at different food and asked them what they want it did you find that men and women were affected differently.
We actually didn't have sufficient numbers in the -- to make those separations so that sent me one of those -- interesting things.
I think what's also interesting is to look at people who have a variety of different current waits as well.
We were looking at people who was somewhat healthy ways and moderate body mass index -- values.
I think it's going to be important for us to find out what the people -- even more bundled into the impact of sleep deprivation across a range of different weights as well as different -- effects.
It hit -- it can we blame our brains doctor is that what you're saying.
If we gain more weight and were sleep deprived.
Well I certainly think what we know from this that he is that the brain is one of the places what these implements and these failures seem to start to -- Leading to inappropriate Mal -- food choices.
We'll -- know that this change is downstairs within the body.
That -- different hormones that control your appetite -- designed to eat they start to -- -- why would sleep deprivation.
So it seems -- -- a lack of sleep affects both the brain and the body -- together it's that confluence of factors.
That can ultimately lead to that weight gain that we know is associated with the lack of sleep.
Failing have thirty seconds here I'm curious -- imminent takes a look at sleep how do you apply it's your own life for you after dinner at night in the near this look at the watch -- failed it's 9 o'clock.
I gotta go I need a full nights of rest because you know the effects and what could happen to you.
-- cookie is it may sound I do practice what I preach and I will get some of between about seven and a half to these hours of sleep -- night.
Without that I can certainly upset the income.
You can't that we ought candy this is very interesting doctor says he -- cities with -- to have you back and talking more about it thank you for the time today.
You very welcome and puts it.
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