Navigation Links
Sleep-Deprived Teens Eat More Fat, Study Finds
Date:9/1/2010

By Ellin Holohan
HealthDay Reporter

WEDNESDAY, Sept. 1 (HealthDay News) -- Teens who sleep less than eight hours a night are more likely to eat a high-fat diet that puts them at risk for obesity and the many health problems connected with it, new research shows.

The study, published in the Sept. 1 issue of the journal Sleep, found that these sleep-deprived teens consumed 2.2 percent more calories from fat, and ate more snacks than those who slept eight hours or more a night. They also ate more total calories.

"There's been a lot of research over the last five years implicating insufficient sleep with obesity," said study author Dr. Susan Redline, of Brigham and Women's Hospital and Beth Israel Deaconess Medical Center in Boston.

"Some experimental studies on sleep deprivation in controlled laboratory environments show a craving for fatty foods among the participants" who got less sleep, she said.

Redline, a professor of medicine with the school's division of sleep medicine, said sleep-deprived teens may suffer from metabolic disturbances that have been linked to obesity and insulin resistance in other research with shift workers whose sleep was also irregular.

Metabolism is the body's process for turning calories into energy. Lack of sleep can affect metabolism by changing the level of appetite-regulating hormones like leptin and ghrelin, setting the stage for poor eating habits, Redline explained.

In addition to being a possible cause of metabolic problems, fewer hours of sleep provided teens with "more opportunities to eat," Redline said.

Teens need about nine hours of sleep every night to feel rested and alert the next day, but few teens get that amount, experts said.

"I almost never see anyone who is sleeping more than seven hours a night," said Dr. Paula Elbirt, an associate professor of pediatrics and adolescent medicine at Mount Sinai Medical Center in New York City. Insufficient sleep among teens is "the rule, not the exception," she said.

Elbirt said the "adolescent lifestyle" encourages teens to stay up late. Socializing on cell phones and computers, playing video games and watching television keep teens awake into the middle of the night, she said, noting that daily stress may be an underlying reason for staying up late.

Elbirt said that while the "prevailing view is that a calorie is a calorie," there is some evidence that calories from fat are more likely to be metabolized into more stored fat. Also, the more fat you eat, the more you crave, she said.

Teens are also "phase-delayed" according to the study, meaning that their circadian rhythm is shifted in a way that makes them alert at night and sleepy in the morning, eating into the night hours.

And because school starts early for most teens, they tend not to get the sleep they need, experts said.

"All of us have a clock system inside us and it keeps 24-hour time," said Dr. Kenneth P. Wright Jr., an associate professor of integrative physiology at the University of Colorado in Boulder. "In adolescence, this system changes, and it drives a lot of our behaviors, like when we sleep."

Wright, at the school's Center for Neuroscience, likened adolescents to people "on the East Coast, living on a West Coast time" clock.

The study measured the hours slept of 240 teens for five to seven consecutive 24-hour periods on weekdays. The teens wore wrist meters measuring their movements to determine wakefulness and sleep. They were interviewed twice within 24 hours of eating about what foods they ate, the amount they ate, and when and where.

Teens who slept less than eight hours a night consumed, on average, 1,968 calories a day. Those who slept eight hours or more averaged 1,723 calories a day. The teens slept a little less than an average of eight hours a night. Only 34 percent of the participants slept eight hours or more.

Wright cited the study's "strong methodology," calling it a "step forward" in examining the relationship between lack of sleep and obesity.

"When we think of adolescents and lack of sleep, we think of drowsy driving, and learning is impaired, but this study also shows that there are real health consequences for teens," said Wright. "It supports the notion that sleep is important for our health."

More information

For more information on sleep and teens, go to the National Sleep Foundation.

SOURCES: Susan Redline, M.D., M.P.H., professor, medicine, division of sleep medicine, Brigham and Women's Hospital and Beth Israel Deaconess Medical Center, Harvard Medical School, Boston; Paula Elbirt, M.D., associate professor and attending physician, division of pediatric and adolescent medicine, Mount Sinai Hospital and School of Medicine, New York City; Kenneth P. Wright Jr., Ph.D, associate professor, integrative physiology, Center for Neuroscience, University of Colorado at Boulder; Sept. 1, 2010, Sleep


'/>"/>
Copyright©2010 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Smoking increases depressive symptoms in teens
2. More U.S. Teens Get Recommended Vaccines
3. For teens, early sex and media exposure not linked
4. Bad Habits Tied to Recurrent Headaches in Teens
5. 1 in 5 U.S. Teens Has Developed Hearing Loss
6. Tylenol Use Linked to Asthma, Other Allergies in Teens
7. University of Michigan study: Pep talk to teens in the ER helped reduce violence, alcohol misuse
8. Addictive Internet Use Tied to Depression in Teens
9. Black Teens May Need Higher Vitamin D Supplementation
10. Vitamin D deficiency linked to arterial stiffness in black teens
11. Eating Disorders, Addictions Tough to Treat in Teens
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Sleep-Deprived Teens Eat More Fat, Study Finds
(Date:6/24/2016)... PASADENA, CA (PRWEB) , ... June 24, 2016 , ... Marcy was in a crisis. ... he would lash out at his family verbally and physically. , “When something upset him, ... table, he would use it. He would throw rocks at my other children and say ...
(Date:6/24/2016)... CA (PRWEB) , ... June 24, 2016 , ... ... is now offering micro-osteoperforation for accelerated orthodontic treatment. Dr. Cheng has extensive experience ... Damon brackets , AcceleDent, and accelerated osteogenic orthodontics. , Micro-osteoperforation is ...
(Date:6/24/2016)... ... June 24, 2016 , ... People across the U.S. ... magazine’s Code Talker Award, an essay contest in which patients and their families pay ... be presented at the 2016 National Society of Genetic Counselors (NSGC) Annual Education Conference ...
(Date:6/24/2016)... Vegas, Nevada (PRWEB) , ... June 24, 2016 ... ... Las Vegas client, The Grove Investment Group (TGIG), has initiated cultivation and processing ... Grove, in Las Vegas and Pahrump, Nevada. , Puradigm is the manufacturer of ...
(Date:6/24/2016)... (PRWEB) , ... June 24, 2016 , ... Venture ... Golf Classic Tournament held on June 20th at the Woodmont Country Club at ... Luke’s Wings, an organization dedicated to helping service members that have been wounded in ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... 23, 2016 Bracket , a leading clinical ... generation clinical outcomes platform, Bracket eCOA (SM) 6.0, at ... 26 – 30, 2016 in Philadelphia , ... Outcome Assessment product of its kind to fully integrate with ... Bracket eCOA 6.0 is a flexible platform for electronic clinical ...
(Date:6/23/2016)... RIDGE, Ill. and INDIANAPOLIS ... of students receiving a Lilly Diabetes Tomorrow,s Leaders Scholarship ... The 2016 scholarship winners, announced today online at ... to let type 1 diabetes stand in the way ... Diabetes has supported the Foundation,s scholarship program since 2012, ...
(Date:6/23/2016)... Revolutionary technology includes multi-speaker listening to conquer ... in advanced audiology and hearing aid technology, has today ... world,s first internet connected hearing aid that opens up ...      (Photo: http://photos.prnewswire.com/prnh/20160622/382240 ) , ... , TwinLink™ - the first dual communication ...
Breaking Medicine Technology: