Experience shows that private participants of sleep a night bought more food with more calories in a supermarket the next day. These
findings are published in the journal Obesity start new light on the
key role of ghrelin , a hormone that increases hunger, but not only. They also point out how the lack of sleep increases impulsivity.
These Swedish researchers from Uppsala University looked so sleep deprivation can alter or food purchasing behavior , assuming that , deprived of sleep , their subjects were hungrier and less able to control their pulses , including on food purchases .
The team therefore deprived of sleep 14 participants of normal weight and gave them a budget of $ 50 to their grocery shopping , with the recommendation to balance calorie foods and foods that are low in calories. Food prices were adjusted accordingly so as not to be a factor in the decision. But, before you go shopping , participants received a standardized breakfast to minimize the effects of hunger on their purchases.
The sleep-deprived volunteers will buy more food , calories ( 9 %) and weight ( 18 %). Their blood levels of ghrelin are more elevated after sleep deprivation ( Visual left ) , which is normal , but not correlated with the buying behavior , this result suggests the involvement of other mechanisms , rather than psychological in the decision to purchase with the authors suggest , faculty decision weakened or greater impulsivity.
Biological and neurological effects : The study does not call into question previous results confirm that sleep deprivation disrupts the levels of two hormones , ghrelin and leptin , which regulates energy expenditure , leading to increased appetite . Thus, sleep-deprived individuals show increased ghrelin , leptin decreased and reduced insulin sensitivity . Other imaging studies have also shown that sleep deprivation model our brains and our desire unhealthy food by promoting certain specific centers of reward " light " against these foods high in sugar , salt and fat .
These Swedish researchers from Uppsala University looked so sleep deprivation can alter or food purchasing behavior , assuming that , deprived of sleep , their subjects were hungrier and less able to control their pulses , including on food purchases .
The team therefore deprived of sleep 14 participants of normal weight and gave them a budget of $ 50 to their grocery shopping , with the recommendation to balance calorie foods and foods that are low in calories. Food prices were adjusted accordingly so as not to be a factor in the decision. But, before you go shopping , participants received a standardized breakfast to minimize the effects of hunger on their purchases.
The sleep-deprived volunteers will buy more food , calories ( 9 %) and weight ( 18 %). Their blood levels of ghrelin are more elevated after sleep deprivation ( Visual left ) , which is normal , but not correlated with the buying behavior , this result suggests the involvement of other mechanisms , rather than psychological in the decision to purchase with the authors suggest , faculty decision weakened or greater impulsivity.
Biological and neurological effects : The study does not call into question previous results confirm that sleep deprivation disrupts the levels of two hormones , ghrelin and leptin , which regulates energy expenditure , leading to increased appetite . Thus, sleep-deprived individuals show increased ghrelin , leptin decreased and reduced insulin sensitivity . Other imaging studies have also shown that sleep deprivation model our brains and our desire unhealthy food by promoting certain specific centers of reward " light " against these foods high in sugar , salt and fat .
No comments:
Post a Comment