Sleepy Teens Eat More Fatty Foods and Snacks

Poor sleep habits go hand-in-hand with unhealthy diets for teenagers. A new study shows teens that sleep less than eight hours on weeknights usually eat more fatty foods and snack more often than their well-rested peers.

The high-fat, snack filled diet is a recipe for obesity, especially as female teens as researchers discovered through data analysis.

Short sleep durations may cause a number of small adjustments in eating habits, altogether changing a teenager’s energy balance. Results show teens who slept less than eight hours consumed 2.2 percent more calories from fat and 3.0 percent fewer calories from carbohydrates.

Sleep-deprived teens were also more likely to grab a snack between meals. For each extra hour of sleep the change of consuming a high amount of calories in snacks decreased by 21 percent.

The study examined the diets of 240 teens in Cleveland, Ohio. Wrist actigraphy data indicated only 34 percent of the participating teens slept for more than eight hours per night. Researchers cross-referenced the hours each teen slept with nutrition data, collected in interviews.

The authors of the study say it’s not clear why the relationship between sleep length and eating habits is stronger for females. They speculate teenage girls are more likely to engage in emotional eating. Because the findings were based on correlation, researchers could not determine the cause of the relationship.

Females with poor sleep habits may unhealthy foods, but men potentially face far worse consequences. Men with long-term insomnia are more likely to die.

Learn more about teen sleep habits and what is keeping them awake at night.

Sleep and High School Start Times: Lessons from Fairfax County

An editorial in today’s Washington Post examines the debate over school start times. It shows just how complex it can be to make changes to daily school schedules.

A proposal in Fairfax County, Va., would change the start time of most high schools in the county from 7:20 a.m. to 8:30 a.m. It appears that there is strong support for a change. But there are also many obstacles.

Money is one concern. In Fairfax County, 169,000 students must be transported to and from school each day. This is both complicated and costly.

The Post reports that Fairfax school officials once estimated that a schedule change could cost up to $40 million. But they found ways to make bus routes more efficient. This led to the current “no-cost” proposal.

Teens and parents may have concerns about starting and ending school later. Will some teens still have time to work on school nights? How will after-school activities be affected? Will the new schedule allow enough time for school teams to practice and play games?

In Fairfax County the group Worried About Keeping Extra-curriculars (WAKE) formed around this issue. Another group called Save Our Sport formed to represent the needs of high-school swim teams and dive teams.

Another huge hurdle for many parents is the issue of day care. Changing the schedule may cause younger children to start and end school earlier. Working parents may have to make new arrangements for the supervision of these children after school.

There also is a debate over the merits of the problem. Scientists report that a biological change causes teens to feel sleepy later at night. Early school start times may prevent them from getting the sleep they need.

Others may argue that teens just need more discipline. They could get more sleep if they would get off the Internet and put down their cell phones earlier at night.

What do you think? Is it worth the effort to change school schedules so teens can get more sleep? Or does making a change cause more problems than it solves?

Update 3/20/09: The Washington Post reports today that the Fairfax County School Board rejected the proposal to delay high school start times by a vote of 10 to 2. According to the article, the board decided that changing the school start times would create too much stress for students and parents.