Featured Research

from universities, journals, and other organizations

Does The Lack Of Sleep Make You Fat?

Date:
December 13, 2004
Source:
University Of Bristol
Summary:
The recent rise in obesity may be partly due to the reduced amount of time we spend asleep, according to new research from the University of Bristol, UK.

The recent rise in obesity may be partly due to the reduced amount of time we spend asleep, according to new research from the University of Bristol, UK.

Related Articles


Dr Shahrad Taheri from Bristol University, and colleagues in the United States, examined the role of two key hormones that are involved in regulating appetite – ghrelin and leptin. Ghrelin increases feelings of hunger while leptin acts to suppress appetite.

People who habitually slept for 5 hours were found to have 15% more ghrelin than those who slept for 8 hours. They were also found to have 15% less leptin. These hormonal changes may cause increased feelings of hunger, leading to a foraging in the fridge for food.

Dr Taheri, lead author of the study, said: "We found that people who slept for shorter durations have reduced leptin and elevated ghrelin. These differences are likely to increase appetite and, in societies where food is readily available, this may contribute to obesity. Individuals who spent less than 8 hours sleeping were shown to have a greater likelihood of being heavier. Good sleep, in combination with other lifestyle modifications may be important in fighting obesity".

This is the first large population-based study to show a significant association between sleep duration and metabolic hormones. The research examined over 1000 volunteers under "real life" conditions.

Dr Taheri, Clinical Lecturer at Bristol University's Henry Wellcome Laboratories, and colleagues at Stanford University and the University of Wisconsin studied volunteers from the Wisconsin Sleep Cohort Study, a population-based study of sleep disorders. The participants underwent continuous sleep monitoring, and reported on their sleep habits through questionnaires and sleep diaries. The results are published in the open-access medical journal Public Library of Science Medicine (7 December, 2004).

Over the last 50 years we have reduced the amount of time we spend asleep by up to two hours a night because of increasing pressures on our time (work, school, family, television, computer games and the internet). The research suggests that this lack of sleep may be contributing to the obesity pandemic.


Story Source:

The above story is based on materials provided by University Of Bristol. Note: Materials may be edited for content and length.


Cite This Page:

University Of Bristol. "Does The Lack Of Sleep Make You Fat?." ScienceDaily. ScienceDaily, 13 December 2004. <www.sciencedaily.com/releases/2004/12/041206204702.htm>.
University Of Bristol. (2004, December 13). Does The Lack Of Sleep Make You Fat?. ScienceDaily. Retrieved March 3, 2015 from www.sciencedaily.com/releases/2004/12/041206204702.htm
University Of Bristol. "Does The Lack Of Sleep Make You Fat?." ScienceDaily. www.sciencedaily.com/releases/2004/12/041206204702.htm (accessed March 3, 2015).

Share This


More From ScienceDaily



More Health & Medicine News

Tuesday, March 3, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Treadmill Test Can Predict Chance Of Death Within A Decade

Treadmill Test Can Predict Chance Of Death Within A Decade

Newsy (Mar. 2, 2015) Johns Hopkins researchers analyzed 58,000 heart stress tests to come up with a formula that predicts a person&apos;s chances of dying in the next decade. Video provided by Newsy
Powered by NewsLook.com
Going Gluten-Free Could Get You A Tax Break

Going Gluten-Free Could Get You A Tax Break

Newsy (Mar. 2, 2015) If a doctor advises you to remove gluten from your diet, you could get a tax deduction on the amount you spend on gluten-free foods. Video provided by Newsy
Powered by NewsLook.com
GlaxoSmithKline and Novartis Try Swapping Success

GlaxoSmithKline and Novartis Try Swapping Success

Reuters - Business Video Online (Mar. 2, 2015) GlaxoSmithKline and Novartis have completed a series of asset swaps worth more than $20 billion. As Grace Pascoe reports they say the deal will reshape both drugmakers. Video provided by Reuters
Powered by NewsLook.com
How Can West Africa Rebuild After Ebola?

How Can West Africa Rebuild After Ebola?

Reuters - Business Video Online (Mar. 2, 2015) How best to rebuild the three West African countries struggling with Ebola will be discussed in Brussels this week. As Hayley Platt reports Sierra Leone has the toughest job ahead - its once thriving economy has been ravaged by the disease. Video provided by Reuters
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins