Sleep restriction reduces heart rate variability

Jun 13, 2007

Chronic sleep restriction has a negative effect on a person's cardiac activity, which may elevate the risk of cardiovascular disease and mortality, according to a research abstract that will be presented Wednesday at SLEEP 2007, the 21st Annual Meeting of the Associated Professional Sleep Societies (APSS).

The study, conducted by Siobhan Banks of the University of Pennsylvania School of Medicine, was based on preliminary analyses of 39 subjects, each of whom participated in a laboratory-controlled chronic sleep restriction protocol. The subjects underwent two nights of baseline sleep followed by five hours of sleep restriction. The results showed a statistically significant decrease in the heart rate variability after five nights of sleep restriction.

"A reduction in the heart rate variability has been reported in several cardiological and non-cardiological diseases," said Banks. "If our finding is sustained by a larger group and further analysis, it may suggest why short sleep duration is associated with a heightened risk of cardiovascular disease and mortality."

The amount of sleep a person gets affects his or her physical health, emotional well-being, mental abilities, productivity and performance. Recent studies associate lack of sleep with serious health problems such as an increased risk of depression, obesity, cardiovascular disease and diabetes.

Source: American Academy of Sleep Medicine

Explore further: A high-fat diet may alleviate mitochondrial disease

Related Stories

Study identifies two biomarkers for lack of sleep

Feb 13, 2015

(Phys.org)—Ideally, we would get the appropriate amount of sleep to keep our bodies healthy, but in our modern society things like jet lag, extended work hours, or using electronic devices cause disruptions ...

An arms-race with mutual benefits

Aug 14, 2013

When you hear the word "mutations", you probably think of something negative like heritable diseases. But mutations also mean genetic diversity and are at the centre of evolution. Researchers have now uncovered ...

Recommended for you

A high-fat diet may alleviate mitochondrial disease

12 hours ago

Mice that have a genetic version of mitochondrial disease can easily be mistaken for much older animals by the time they are nine months old: they have thinning grey hair, osteoporosis, poor hearing, infertility, ...

Cheek muscles hold up better than leg muscles in space

12 hours ago

It is well known that muscles need resistance (gravity) to maintain optimal health, and when they do not have this resistance, they deteriorate. A new report published in the July 2015 issue of The FASEB Journal, however, sugges ...

Sialic acid: A key to unlocking brain disorders

15 hours ago

A new report published in the July 2015 issue of The FASEB Journal suggests that a common molecule found in higher animals, including humans, affects brain structure. This molecule may play a significant role in how brain ...

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.