Can lack of sleep make you fat?
New study suggests just one sleepless night can make your body store extra fat
A study in Sweden has shown how a lack of sleep can make your body store extra fat and break down muscle.
Researchers at Uppsala University took fat and muscle samples from 15 healthy men, once after a good night’s sleep and once after they stayed awake all night.
“After the sleepless night, the participants’ muscles showed signs of protein breakdown. Their fat tissue, in contrast, had elevated levels of proteins and metabolites that are involved in promoting fat storage,” reports the New Scientist.
Subscribe to The Week
Escape your echo chamber. Get the facts behind the news, plus analysis from multiple perspectives.
Sign up for The Week's Free Newsletters
From our morning news briefing to a weekly Good News Newsletter, get the best of The Week delivered directly to your inbox.
From our morning news briefing to a weekly Good News Newsletter, get the best of The Week delivered directly to your inbox.
“Staying awake all night also appeared to change the expression of several genes in fat tissue that are associated with obesity and type 2 diabetes.”
Jonathan Cedernaes, an author of the study, published in Science Advances, said it helped to explain why insomniacs and shift workers are more likely to become overweight or suffer from type 2 diabetes. A lack of sleep appears to restrict hormones that maintain muscles and increase levels of cortisol, which encourages fat storage.
Cedernaes’s team are looking into whether certain foods or exercise regimes could help to reverse these effects.
“It may be the case, for example, that eating protein-rich foods or doing resistance training might reduce the risk of muscle degradation,” he says.
Another 2016 study by the University of Chicago found that, after cutting its participants’ sleep from 8.5 hours to 4.5 hours, they were more likely to reach for junk food the next day.
Dr Erin Hanlon, one of the leaders of the study, said having enough sleep makes it easier to control yourself when you see unhealthy food.
“But if you’re sleep deprived, your hedonic drive for certain foods gets stronger, and your ability to resist them may be impaired. So you are more likely to eat it. Do that again and again, and you pack on the pounds,” she said.
Sign up for Today's Best Articles in your inbox
A free daily email with the biggest news stories of the day – and the best features from TheWeek.com
-
'It may not be surprising that creative work is used without permission'
Instant Opinion Opinion, comment and editorials of the day
By Justin Klawans, The Week US Published
-
5 simple items to help make your airplane seat more comfortable
The Week Recommends Gel cushions and inflatable travel pillows make a world of difference
By Catherine Garcia, The Week US Published
-
How safe are cruise ships in storms?
The Explainer The vessels are always prepared
By Devika Rao, The Week US Published
-
Tirzepatide and the other ‘breakthrough’ obesity drugs
feature Huge demand for weight-loss medication means prices have soared
By The Week Staff Published
-
Headband can put an end to nightmares
feature And other stories from the stranger side of life
By The Week Staff Published
-
The Week Unwrapped: Russian visas, Arab fattism and quiet quitting
podcast Is Finland an unwilling backdoor to Europe? Has fat-shaming reached the Middle East? And are young workers really slacking off?
By The Week Staff Published
-
The Week Unwrapped: Twitter vs India, digital amnesia and sleepless nights
podcast Why is the Indian government suppressing social media? Have we given up using our memories? And why are so few of us getting a good night’s sleep?
By The Week Staff Published
-
Home Office worker accused of spiking mistress’s drink with abortion drug
Speed Read Darren Burke had failed to convince his girlfriend to terminate pregnancy
By The Week Staff Published
-
‘The Tories will stick with the devil they know’
Instant Opinion Your digest of analysis from the British and international press
By The best columns Published
-
In hock to Moscow: exploring Germany’s woeful energy policy
Speed Read Don’t expect Berlin to wean itself off Russian gas any time soon
By The Week Staff Published
-
Were Covid restrictions dropped too soon?
Speed Read ‘Living with Covid’ is already proving problematic – just look at the travel chaos this week
By The Week Staff Last updated