Featured Research

from universities, journals, and other organizations

Research Links Healthy Biological Clock To Longevity

Date:
March 29, 1999
Source:
University Of Toronto
Summary:
Aging hamsters who received a new biological clock had their lifespan increased by 20 per cent, proving the importance of circadian rhythms to the health and longevity of an organism.

Aging hamsters who received a new biological clock had their lifespan increased by 20 per cent, proving the importance of circadian rhythms to the health and longevity of an organism.

Once the biological clock of a hamster begins to deteriorate, death occurs within three months. However, when University of Toronto psychologist Martin Ralph transplanted a new clock into hamsters whose own clocks had begun to deteriorate, they lived an average of four months longer than hamsters without the transplant -- roughly a 20 per cent increase in their lifespan.

A biological clock is a small piece of brain tissue that generates a rhythm controlling the day/night behaviour of an organism. When this rhythm breaks down, as it does in many aging humans, it leads to numerous health problems including disrupted sleep patterns and poor body temperature control. Ralph says that while it is highly unlikely humans will ever receive new biological clocks, behaviour modification might achieve similar results.

"If the function of the clock can be mimicked by a structured lifestyle, such as more light during the day and darkness at night, then this will work in the same direction as the transplant works in hamsters," he says.

Ralph collaborated with Mark Hurd of the University of Houston. The study was supported by the National Institute on Aging in the United States and the Natural Sciences and Engineering Research Council in Canada.

CONTACT:
Kerry Delaney
U of T Public Affairs
(416) 978-5948
kerry.delaney@utoronto.ca


Story Source:

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


Cite This Page:

University Of Toronto. "Research Links Healthy Biological Clock To Longevity ." ScienceDaily. ScienceDaily, 29 March 1999. <www.sciencedaily.com/releases/1999/03/990325111049.htm>.
University Of Toronto. (1999, March 29). Research Links Healthy Biological Clock To Longevity . ScienceDaily. Retrieved September 23, 2014 from www.sciencedaily.com/releases/1999/03/990325111049.htm
University Of Toronto. "Research Links Healthy Biological Clock To Longevity ." ScienceDaily. www.sciencedaily.com/releases/1999/03/990325111049.htm (accessed September 23, 2014).

Share This



More Health & Medicine News

Tuesday, September 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Ebola Costs Keep Mounting

Ebola Costs Keep Mounting

Reuters - Business Video Online (Sep. 23, 2014) The WHO has warned up to 20,000 people could be infected with Ebola over the next few weeks. As Sonia Legg reports, the implications for the West African countries suffering from the disease are huge. Video provided by Reuters
Powered by NewsLook.com
Ebola Cases Could Reach 1.4 Million Within 4 Months

Ebola Cases Could Reach 1.4 Million Within 4 Months

Newsy (Sep. 23, 2014) Health officials warn that without further intervention, the number of Ebola cases in Liberia and Sierra Leone could reach 1.4 million by January. Video provided by Newsy
Powered by NewsLook.com
WHO: Ebola Cases to Triple in Weeks Without Drastic Action

WHO: Ebola Cases to Triple in Weeks Without Drastic Action

AFP (Sep. 23, 2014) The number of Ebola infections will triple to 20,000 by November, soaring by thousands every week if efforts to stop the outbreak are not stepped up radically, the WHO warned in a study on Tuesday. Duration: 01:01 Video provided by AFP
Powered by NewsLook.com
5 Ways Men Can Prevent Most Heart Attacks

5 Ways Men Can Prevent Most Heart Attacks

Newsy (Sep. 23, 2014) No surprise here: A recent study says men can reduce their risk of heart attack by maintaining a healthy lifestyle, which includes daily exercise. Video provided by Newsy
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