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 January 28, 2015 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 January 28, 2015).

Share This


More From ScienceDaily



More Health & Medicine News

Wednesday, January 28, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Malnutrition on the Rise as Violence Flares in C. Africa

Malnutrition on the Rise as Violence Flares in C. Africa

AFP (Jan. 28, 2015) Violence can flare up at any moment in Bambari with only a bridge separating Muslims and Christians. Malnutrition is on the rise and lack of water means simple cooking fires threaten to destroy makeshift camps where people are living. Duration: 00:40 Video provided by AFP
Powered by NewsLook.com
Poultry Culled in Taiwan to Thwart Bird Flu

Poultry Culled in Taiwan to Thwart Bird Flu

Reuters - News Video Online (Jan. 28, 2015) Taiwan culls over a million poultry in efforts to halt various strains of avian flu. Julie Noce reports. Video provided by Reuters
Powered by NewsLook.com
Media Criticizing Parents For Not Vaccinating Children

Media Criticizing Parents For Not Vaccinating Children

Newsy (Jan. 28, 2015) As the Disneyland measles outbreak continues to spread, the media says parents who choose not to vaccinate their children are part of the cause. Video provided by Newsy
Powered by NewsLook.com
Shark Bite Victim Making Amazing Recovery

Shark Bite Victim Making Amazing Recovery

AP (Jan. 27, 2015) A Texas woman who lost more than five pounds of flesh to a shark in the Bahamas earlier this month could be released from a Florida hospital soon. Experts believe she was bitten by a bull shark while snorkeling. (Jan. 27) Video provided by AP
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