Kids Who Skimp on Sleep Tend to Be Fatter
While the connection between a child’s weight and the amount of sleep that child gets may not be immediately apparent, new research has found a strong correlation between the two.
Sixth-graders who averaged less than 8.5 hours of sleep a night had a 23 percent rate of obesity, while their well-rested peers who averaged more than 9.25 hours of sleep had an obesity rate of just 12 percent, according to a new study.
“We found that children who got less sleep were more likely to be obese,” said the study’s lead author, Dr. Julie Lumeng, an assistant research scientist at the University of Michigan Center for Human Growth and Development…
Lumeng said there are three likely reasons why sleep might affect weight. First, if children don’t get enough sleep at night, they’ll be less likely to run around and get exercise during the day. Second, when kids are tired, they’re more irritable and may reach for junk food to help regulate their mood. And, finally, what Lumeng called a “hot area for future research” is the possible connection between sleep and fat metabolism. She said there have been studies done with adults that have shown that a lack of sleep may disrupt the secretion of hormones involved in appetite and metabolism, such as leptin and insulin…
Both Lumeng and Sheldon recommended trying to keep a consistent sleep schedule. Bedtimes and wake times are both important - for children and adults. Sheldon said it’s usually OK to vary your sleep times a little bit on the weekend, about an hour or so, but, he cautioned, “Letting you child sleep till noon or mid-afternoon is inviting trouble.”
Lumeng also recommended that children not have a TV in their bedroom, because it can make it more difficult to fall asleep.
Source: CBC News, Canada
http://www.cbc.ca/cp/HealthScout/071114/6111417AU.html