Not getting enough sleep can get to fatten
Sleep deprivation can cause people to consume more calories during the day, it reveals a systematic review and meta – analysis conducted by experts ‘King’s College London’, in the UK.
Meta – analysis combined results of many previous studies of small interventions to produce a more robust response and found that people with sleep deprivation consumed an average of 385 kcal per day extra, equivalent to about 4.5 calories bread slices .
The study, published Wednesday in ‘European Journal of Clinical Nutrition, combined the results of 11 studies with a total of 172 participants . The analysis included evaluations comparing intervention partial sleep restriction with a control intervention unrestricted sleep and measured energy intake of individuals over the next 24 hours.
Thus, they found that partial sleep deprivation had no significant effect on the amount of energy expended in the next 24 hours. Therefore, participants recorded a net increase of energy gained 385 calories per day.
The researchers also found that there was a small change in what people ate lacked dream had a fat intake proportionately higher and lower in protein, but there was no change in carbohydrate intake.
A possible contributor to obesity
“The main cause of obesity is an imbalance between caloric intake and expenditure and this study adds to the accumulating evidence that sleep deprivation might contribute to this instability. We found that deprivation partial sleep resulted in a large net increase in energy consumption of 385 kcal per day, so if sleep deprivation long term continues to give rise to an increase in caloric intake of this magnitude, can contribute to increased weight , “says Dr. Gerda Pot, a researcher at the Division of Nutrition and Diabetes ‘King’s College London’.
“The reduction of sleep is one of the health risks most common and potentially modifiable in today ‘society, where chronic sleep loss is becoming more common. More research is needed to analyze the importance of partial sleep deprivation long – term as a risk factor for obesity and if sleep extension could play a role in preventing obesity , “adds also a professor at Vrije University in Amsterdam.
A small preliminary study in 26 adults found that partial sleep deprivation led to increased activation of areas in the brain associated with reward when people were exposed to food. A greater motivation to seek food could be an explanation for the increase in food intake seen in people with less sleep in this paper, the authors suggest.
Other possible explanations include an interruption of the internal body clock affects the regulation of the body of leptin (the satiety hormone) and ghrelin (hunger hormone). The amount of sleep restriction ranged between jobs, with private participants sleep sleeping between 3.5 and 5.5 hours at night, and the control subjects who spent between seven and 12 hours in bed.
The authors suggest that more studies are needed. “Our results highlight the dream as a third potential factor, in addition to diet and exercise to manage weight gain more effectively. Currently, we are conducting a randomized controlled trial in people with little sleep to explore the effects of sleep extension on indicators of weight gain , “forward Haya Al Khatib, lead author and PhD candidate at King’s College London.