Early to Bed for Preschoolers Helps Avoid Obesity Later

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Preschoolers who are regularly tucked into bed by 8 p.m. are far less likely to become obese teenagers than young children who go to sleep later in the evening, new research has found.

The study, conducted by The Ohio State University College of Public Health, said that bedtimes after 9 p.m. appeared to double the likelihood of obesity later in life.

“For parents, this reinforces the importance of establishing a bedtime routine,” said Sarah Anderson, lead author and associate professor of epidemiology.  “It’s something concrete that families can do to lower their child’s risk and it’s also likely to have positive benefits on behavior and on social, emotional and cognitive development.”

Excess weight in children is a major health concern in the United States. Approximately 17 percent of children and adolescents are obese, according to the latest figures from the Centers for Disease Control and Prevention.  Obesity can set kids up for a lifelong struggle with weight and health complications that can accompany it, including diabetes and heart disease.

The new research, which appears in the The Journal of Pediatrics, used data from 977 children who were part of the Study of Early Child Care and Youth Development. That project followed healthy babies born at 10 U.S. sites in 1991.

Anderson and her co-authors divided preschool bedtimes into three categories: 8 p.m. or earlier, between 8 p.m. and 9 p.m., and after 9 p.m. The children were about 4 ½ years old when their mothers reported their typical weekday bedtime.

The researchers linked preschoolers’ bedtimes to obesity when the kids were teens, at an average age of 15.

They found a striking difference: Only 1 in 10 of the children with the earliest bedtimes were obese teens, compared to 16 percent of children with mid-range bedtimes and 23 percent of those who went to bed latest. Half the kids in the study fell into the middle category. A quarter had early bedtimes and another quarter went to bed late.

Because the emotional climate at home can influence routines such as bedtime, Anderson and her colleagues also examined interactions between mothers and their children during a videotaped playtime. Scientists call the measurement “maternal sensitivity” and it factors in maternal support, respect for the child’s autonomy and lack of hostility.

Regardless of the quality of the maternal-child relationship, there was a strong link between bedtimes and obesity, the researchers found. But the children who went to bed latest and whose moms had the lowest sensitivity scores faced the highest obesity risk.

The researchers also found that later bedtimes were more common in children who were not white, whose moms had less education and who lived in lower-income households.

Previous research has established a relationship between short sleep duration and obesity. And one study found a correlation between late bedtimes and obesity risk five years later. This new bedtime study is the first to use data on obesity collected about a decade after the children were in preschool, Anderson said.

Source: News Release

 

 

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