Sleeping more could lead to weightlossreports a new study, which found that people who slept more reduced their daily calorie intake.
the university of chicago study focused on the effect of increased sleep on over weight people who slept less than 6.5 hours a night.
The results showed that the participants who slept the most reduced their calorie intake by 270 calories per day.
Continued for a year, and without changing diet or exercise habits, that would lead to a weight loss of almost 9 pounds (4 kg) and a whopping 26 pounds (12 kg) loss in three years, the study predicted.
“If sleep is prolonged for longer periods, weight loss in the form of fat mass is likely to increase over time,” the researchers said.
“Some observations suggest that getting 7 to 8 hours of sleep per night is associated with greater success in weight loss interventions.”
The sleep and weight loss study was published in the medical journal JAMA Internal Medicine on February 7.
How does sleep help you lose weight?
(Image: Getty Images/iStockphoto)
Previous research already shows that lack of sleep is a risk factor for obesity.
The study studied a group of 80 overweight people who slept less than 6.5 hours a night.
The participants were not asked to change their diet or exercise habits and even slept in their own beds.
One group was randomly selected to extend their sleep to eight and a half hours, and the other group continued as usual.
The scientists found that the participants were able to increase their sleep time by 1.2 hours (72 minutes) over the two-week period and reduced their calorie intake by 270 calories per day.
Why would sleeping more reduce calorie intake?
The researchers said: “Evidence from laboratory studies of sleep restriction suggests that increased hunger, alterations in appetite-regulating hormones, and changes in brain regions related to reward-seeking behavior are potential mechanisms.” that promote overeating after sleep restriction.
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In short, sleeping less increases hunger and overeating.
They concluded: “Improving and maintaining healthy sleep duration for longer periods could be part of obesity prevention and weight loss programs.”
Dr. Esra Tasali, of the University of Chicago Sleep Center, said the study did not focus on weight loss.
“But even in just two weeks, we have quantified evidence showing a decrease in caloric intake and a negative energy balance: caloric intake is less than calories burned,” he said.
“If healthy sleep habits are maintained for longer, this would lead to clinically important weight loss over time.
“Many people are working hard to find ways to lower their caloric intake to lose weight – well, just by getting more sleep, you may be able to reduce it substantially.”
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