Glenn Reynolds reports on the latest in anti-aging research. Fascinating. One possible implication of extending life spans:

... on a societal level, the extension of peoples’ productive working lives could pay huge dividends. If people stay youthful longer, we’ll see less pressure on the stressed-out social security systems of most industrialized countries. If 65-year-olds were as vigorous as 35-year-olds, or even 45-year-olds, there would be no reason to fund their retirement. Pushing the retirement age back a decade or two could save trillions. And, of course, if you can actually reverse aging, the whole notion of retirement becomes obsolete.

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