Clipping of news on Brazilian Culture, Law and Citizenship
03/14/2013
This article was translated by an automatic translation system, and was therefore not reviewed by people.
New research found that five days of restricted sleep can fatten a pound. That's because the habit causes a person to eat more than you need, especially in times when I should be sleeping
Balance: Study observes how people who sleep little fatter end in a few days
Spend five days sleeping little - less than five hours a night - may be enough to make a person fattening about a pound, concluded a new study from the University of Colorado at Boulder, USA. According to research, people who spend more hours awake, although spend more energy, eat more than you need and thus consumes a larger amount of calories than you expend, especially at night, which ultimately promotes weight gain.
These findings were published Monday in the journal Proceedings of the National Academy of Sciences (PNAS). According to the study authors wrote in the article, several studies have linked the habit of sleeping a little more prone to obesity, but few have managed to find an explanation for this association.
The search began when the team selected 16 healthy people with an average age of 24 years. Participants had a normal weight, with a body mass index (BMI) on average 22.9 (ideal BMI is 18.5 to 25. Above that, the individual is considered overweight or obese). Moreover, none of them had problems in relation to duration of sleep: they slept normally about eight hours per night.
Controlled environment - For two weeks, these 16 people lived at the Hospital of the University of Colorado and slept in one of the "sleeping quarters" of the unit, where researchers are able to control and monitor the patients' sleep. In the first three days, sleep duration and the amount of calories ingested by the volunteers were controlled - participants slept about nine hours a night and consumed the energy needed to maintain their weight.
Afterward, participants were divided into two groups: one of them spent the next five days sleeping only five hours a night, and the rest of the volunteers continued sleeping nine hours a night. After this period, the participants exchanged Group. At this stage of the research, the team offered both groups hearty meals and free access to snacks during the day, which included foods such as fruit, yogurt, ice cream and snacks.
According to the results, the group spent five days sleeping less time spent on average 5% more power than the volunteers rested for nine hours. However, they consume approximately 6% more calories. Besides, who had less sleep had a greater tendency to eat less at breakfast the morning but exaggerating made in snacks during the night and after dinner, which corresponded, in general, the more caloric meal of the day.
"Our findings show that when people are sleep restricted, they feed their schedules during biological night, when the body is not prepared to receive food," said Kenneth Wright, director of the Sleep and Chronobiology Laboratory at the University of Colorado and study coordinator.
Gender issue - The study authors also found that although both men and women have gained weight with sleep restriction, the male participants also gained weight when they had unrestricted access to food, even sleeping nine hours a night. The subjects, on the other hand, maintained their weight with sufficient sleep regardless of the amount of food available to them.
Source: See - Online
Our news are removed entirely from the sites of our partners. For this reason, we can not change their content even in cases of typos.
This article was translated by an automatic translation system, and was therefore not reviewed by people.