NEW YORK (Reuters Health) - A new study suggests that children have enough sleep can help them maintain a normal body weight.
The latest research shows that lack of sleep can lead to changes in appetite and eating habits. In the new experiment, if the children sleep earlier than usual, compared to delayed sleep, eating less of, it will reduce the weight.
But the study sample is still relatively small, only 37 8-11-year-olds participate in the study only lasted three weeks.
"This is a relatively short time is smaller experimental research, as long as for the children of school age," Chantelle N. Hart said. She led the study Obesity Research and Education Center Temple University in Philadelphia undertaken.
"Before deciding to eat less sleep and more children, need to do more research," Hart told Reuters Health.
In the first week of the experiment, the children go to bed as usual - about nine and a half hours per night. The sleep time is lower than recommended by the National Sleep Foundation study of school-age children 10-11 hours of sleep.
The researchers followed the children were randomly divided into two groups. From the second week, a group of kids go to bed early than usual, a half hour, and one and a half hours sleep at night than usual.
The third week, two groups exchanged sleep time.
According to the report of parents, children sleep number of weeks that one, compared to one week of sleep loss, children average calorie intake to reduce 134 calories.
According to published in "Pediatrics" on the findings in sleep much that week, children half a pound average weight loss.
Hart represents 134 calories and is difficult to determine what is the difference between a half-pound of body weight. Calorie estimates may be biased, and the heat and metabolic needs of each child's level is not the same.
When the increase in sleep time, the children's leptin hormone levels low. Leptin is produced by fat tissue, it is believed that the body can regulate fat storage.
Some studies on adult practice also show changes in sleep regulating hormone levels can affect hunger and satiety. Hart said that when people sleep less more likely to feel hungry, so eat more.
Dean W. Beebe, said the study shows that sleep can directly affect body weight.
"In a certain extent, this means that we can take some action, after all, we know that sleep is a possible change of behavior," Beebe said.
Beebe worked at Children's Medical Center of Cincinnati, Ohio, mainly in children sleep and neuropathology, which I was not involved in the study.
"Nevertheless, to understand the specific mechanism is still good, because it can help us to unravel the complex puzzle of diet and weight control," he added.
He told Reuters Health, diet can not think of dieting method will change exciting.
"We can tell parents that we have more evidence that sleep is very important," Beebe said. "Significant enough in a crowded family planning in the first place to mention the following: set and adhere to a reasonable bedtime, go to bed before the turn off electronic devices, such as TV, computer games, phone, ipad, refused on the market caffeine products, re-scheduling activities to avoid playing into the night - or reconsider those activities are worth doing. "
He added that parents should also lobbied in the development of school curriculum, do not advance the adult work time hours, fewer adults and children and adolescents need to sleep.
Hard to say, to include more children, as well as a longer time to observe more research is very important. The researchers also found that children need to practice better ways to increase sleep through these studies.
"A good night's sleep can bring many benefits, involves a number of functional areas, including memory, learning ability, improve emotional control and reduce behavioral difficulties," she said. "The present study adds to a good night's sleep is another possible benefit."
(Author: lw56102)
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