Study: Lack of Sleep Tied to Childhood Obesity

CHICAGO (AP) -- Writing in the journal Pediatrics, researchers have found that every additional hour per night that a third-grader spends sleeping reduces his or her chances of being obese in the sixth grade -- by 40 percent.

The lead researcher says the less sleep third-grade kids got, the more likely they were to be obese in the sixth grade, no matter what the child's weight was in the earlier grade. If there's a magic number for the third-graders, it's nine hours, 45 minutes of sleep.

A University of Michigan doctor who led the research says tired kids are less likely to exercise and more likely to sit on the couch and eat cookies.

An endocrinologist at the University of Chicago who wasn't involved in the new study says lack of sleep plays havoc with two hormones that are the "yin and yang of appetite regulation."

(Copyright 2007 by The Associated Press. All Rights Reserved.)

Join the Conversation!

To comment, the following rules must be followed:

  • No Obscenity, Profanity, Vulgarity, Racism or Violent Descriptions
  • No Negative Community Comparisons
  • No Fighting, Name-calling, or Personal Attacks
  • Multiple Accounts are Not Allowed
  • Stay on Story Topic

Comments may be monitored for inappropriate content, but the station is under no legal obligation to do so.
If you believe a comment violates the above rules, please use the Flagging Tool to alert a Moderator.
Flagging does not guarantee removal.

Multiple violations may result in account suspension.
Decisions to suspend or unsuspend accounts are made by Station Moderators.
Links require admin approval before posting.
Questions may be sent to Please provide detailed information.

powered by Disqus


6450 Papermill Drive Knoxville, TN 37919 Phone - (865) 450-8888; Fax - (865) 450-8869
Copyright © 2014 WVLT-TV Inc. - Designed by Gray Digital Media - Powered by Clickability 11021066 -
Gray Television, Inc.