YOUTUBE Quest to Immortality:
http://www.youtube.com/watch?v=XfTqXL0d9Ls
*The Quest For Immortality ( 60 Minutes )
(http://www.cbsnews.com/stories/2005/12/28/60minutes/main1168852_page2.shtml?tag=contentMain;contentBody)Want To Live 500 Years? One Scientist Says It May Be Possible One Day
De Grey has identified the biological processes he thinks are responsible for aging, including the mutations that cause cancer and the gradual buildup of useless, toxic junk.
What does this accumulation of junk within the cells lead to?"It depends on the tissue. In the eye, there is a type of junk that accumulates in the back of the retina that eventually causes us to go blind. It's called age-related macular degeneration. In the arteries, you have a different type of cell which accumulates a different type of junk that eventually causes arteriosclerosis," he says.
But de Grey has gone way beyond describing the causes of degeneration. In a series of papers he has developed a theory he calls "Engineered Negligible Senescence". Simply put, it says science will soon enable us to grow old without aging.
De Grey says that not all of the conditions that cause our bodies to age can be avoided or prevented…yet. "But I do claim that we have a fighting chance of developing ways to prevent them within the next 25 years or so."
So humans will be just as spry at 500 as we were at 25?
"If you have difficultly imaging this, think about the situation with houses. With moderate maintenance they stay up, they stay intact, inhabitable more or less forever. It’s just that we have to do a bit of maintenance to keep them going. And it's going to be the same with us," says de Grey.
But realistically, who wants to live to age 500 or 1,000?
"What I'm after is not living to 1,000. I'm after letting people avoid death for as long as they want to," he says.

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