Sleep restriction results in increased consumption of energy from snacks

Jun 11, 2008

Bedtime restriction in an environment that promotes overeating and inactivity is accompanied by increased intake of calories from snacks. This behavior may contribute to the increased risk of weight gain and obesity associated with short sleep hours, according to a research abstract that will be presented on Wednesday at SLEEP 2008, the 22nd Annual Meeting of the Associated Professional Sleep Societies.

The study authors led by Plamen Penev, MD, PhD, of the University of Chicago, followed 11 healthy volunteers who each completed two 14-day studies in random order at least three months apart. Studies were carried out in the laboratory with five-and-a-half or eight-and-a-half hour bedtimes and ad lib food intake.

According to the results, when bedtimes were restricted to five-and-a-half hours study subjects consumed more energy from snacks. The carbohydrate content of ingested snacks also increased for this group.

The authors concluded that factors such as longer exposure to an environment with unlimited access to food and changes in reward seeking and motivation may underlie the increased consumption of snacks associated with recurrent bedtime curtailment.

It is recommended that adults get between seven and eight hours of nightly sleep.

Source: American Academy of Sleep Medicine

Explore further: Carnegie Mellon, Pitt ethicists question impact of hospital advertising

add to favorites email to friend print save as pdf

Related Stories

Late-Night Snacks: Worse Than You Think

Sep 03, 2009

(PhysOrg.com) -- Eat less, exercise more. Now there is new evidence to support adding another "must" to the weight-loss mantra: eat at the right time of day.

Recommended for you

Can Lean Management improve hospitals?

2 hours ago

Waiting times in hospital emergency departments could be cut with the introduction of Lean Management and Six Sigma techniques according to new research.

Research finds 90 percent of home chefs contaminate food

2 hours ago

If you're gearing up for a big Super Bowl bash, you might want to consult the best food-handling practices before preparing that feast. New research from Kansas State University finds that most home chefs drop the ball on ...

Unique EarlyBird study set for historic third phase

4 hours ago

A unique study which has followed 300 young people from age five since 2000, has received backing for a third phase which will see it become the first study of its kind in the world to track the same group ...

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.