Featured Research

from universities, journals, and other organizations

Underlying Causes Of Aging Explained

Date:
June 23, 2009
Source:
The Gerontological Society of America
Summary:
What are the underlying causes of aging? "Aging occurs because the complex biological molecules of which we are all composed become dysfunctional over time as the energy necessary to keep them structurally sound diminishes. Thus, our molecules must be repaired or replaced frequently by our own extensive repair systems," according to one symposium speaker.

Former GSA President Leonard Hayflick, PhD, a professor of anatomy at the University of California, San Francisco will be speaking on the underlying causes of aging.* He said that the accumulation of new insights has made it possible, for the first time, to understand the biological reasons for the aging of animals and humans.

Related Articles


“Aging occurs because the complex biological molecules of which we are all composed become dysfunctional over time as the energy necessary to keep them structurally sound diminishes. Thus, our molecules must be repaired or replaced frequently by our own extensive repair systems,” Hayflick said.

“These repair systems, which are also composed of complex molecules,” he explained, “eventually suffer the same molecular dysfunction. The time when the balance shifts in favor of the accumulation of dysfunctional molecules is determined by natural selection — and leads to the manifestation of age changes that we recognize are characteristic of an old person or animal. It must occur after both reach reproductive maturity, otherwise the species would vanish.”

Hayflick also noted that these repair and maintenance systems are called “determinants of longevity,” which is a phenomenon different from the aging process itself.

“These fundamental molecular dysfunctional events lead to an increase in vulnerability to age-associated disease,” he said. “Therefore, the study, and even the resolution of age-associated diseases, will tell us little about the fundamental processes of aging.”

*He will be speaking at a symposium at the upcoming World Congress of Gerontology and Geriatrics, taking place from July 5–9, 2009, in Paris, France.

Hayflick’s discoveries — described in his book, “How and Why We Age” — have been reinforced by several other leading biologists, who will join him at the Paris symposium.


Story Source:

The above story is based on materials provided by The Gerontological Society of America. Note: Materials may be edited for content and length.


Cite This Page:

The Gerontological Society of America. "Underlying Causes Of Aging Explained." ScienceDaily. ScienceDaily, 23 June 2009. <www.sciencedaily.com/releases/2009/06/090623120840.htm>.
The Gerontological Society of America. (2009, June 23). Underlying Causes Of Aging Explained. ScienceDaily. Retrieved November 23, 2014 from www.sciencedaily.com/releases/2009/06/090623120840.htm
The Gerontological Society of America. "Underlying Causes Of Aging Explained." ScienceDaily. www.sciencedaily.com/releases/2009/06/090623120840.htm (accessed November 23, 2014).

Share This


More From ScienceDaily



More Health & Medicine News

Sunday, November 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Ebola-Hit Sierra Leone's Late Cocoa Leaves Bitter Taste

Ebola-Hit Sierra Leone's Late Cocoa Leaves Bitter Taste

AFP (Nov. 23, 2014) The arable district of Kenema in Sierra Leone -- at the centre of the Ebola outbreak in May -- has been under quarantine for three months as the cocoa harvest comes in. Duration: 01:32 Video provided by AFP
Powered by NewsLook.com
Don't Fall For Flu Shot Myths

Don't Fall For Flu Shot Myths

Newsy (Nov. 23, 2014) Misconceptions abound when it comes to your annual flu shot. Medical experts say most people older than 6 months should get the shot. Video provided by Newsy
Powered by NewsLook.com
WFP: Ebola Risks Heightened Among Women Throughout Africa

WFP: Ebola Risks Heightened Among Women Throughout Africa

AFP (Nov. 21, 2014) Having children has always been a frightening prospect in Sierra Leone, the world's most dangerous place to give birth, but Ebola has presented an alarming new threat for expectant mothers. Duration: 00:37 Video provided by AFP
Powered by NewsLook.com
Could Your Genes Be The Reason You're Single?

Could Your Genes Be The Reason You're Single?

Newsy (Nov. 21, 2014) Researchers in Beijing discovered a gene called 5-HTA1, and carriers are reportedly 20 percent more likely to be single. 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