Comments Subscribe to Personal Liberty News Feed Subscribe to Personal Liberty

Catching Up On Sleep Over The Weekend Helps Some

HERSHEY, Pa., Oct. 12 (UPI) — Making up for lost sleep during the workweek over the weekend helps repair some damage to the body, but not all, U.S. researchers say.

Study leader Alexandros N. Vgontzas of the Pennsylvania State University College of Medicine and colleagues placed 30 volunteers on a sleep schedule that mimicked a sleep-restricted workweek followed by a weekend with extra recovery sleep.

At various points along this schedule, the researchers assessed the volunteers’ health and performance using a variety of different tests.

Previous research showed even a few days of lost sleep can have adverse effects, including increased daytime sleepiness, worsened daytime performance, an increase in molecules that are a sign of inflammation in the body and impaired blood sugar regulation, Vgontzas said.

The researchers found the volunteers’ sleepiness increased significantly after sleep restriction, but returned to baseline after recovery sleep. Levels of a molecule in blood that’s a marker for the amount of inflammation present in the body increased significantly during sleep restriction, but returned to normal after recovery.

Levels of a hormone that’s a marker of stress didn’t change during sleep restriction, but were significantly lower after recovery.

However, the volunteers’ measures on a performance test that assessed their ability to pay attention deteriorated significantly after sleep restriction and did not improve after recovery.

This last finding suggested recovery sleep over just a single weekend might not reverse all the effects of sleep lost during the workweek.

The findings were published in the American Journal of Physiology-Endocrinology and Metabolism.

UPI - United Press International, Inc.

Since 1907, United Press International (UPI) has been a leading provider of critical information to media outlets, businesses, governments and researchers worldwide.

Facebook Conversations

Join the Discussion:
View Comments to “Catching Up On Sleep Over The Weekend Helps Some”

Comment Policy: We encourage an open discussion with a wide range of viewpoints, even extreme ones, but we will not tolerate racism, profanity or slanderous comments toward the author(s) or comment participants. Make your case passionately, but civilly. Please don't stoop to name calling. We use filters for spam protection. If your comment does not appear, it is likely because it violates the above policy or contains links or language typical of spam. We reserve the right to remove comments at our discretion.

Is there news related to personal liberty happening in your area? Contact us at


Sign Up For Personal Liberty Digest™!

PL Badge

Welcome to,
America's #1 Source for Libertarian News!

To join our group of freedom-loving individuals and to get alerts as well as late-breaking conservative news from Personal Liberty Digest™...

Privacy PolicyYou can opt out at any time. We protect your information like a mother hen. We will not sell or rent your email address to anyone for any reason.