杏吧原创

Old people are getting even older. The age to which the oldest people live
has been rising for more than a century, and 鈥渢here is no hint yet that trend is
slowing down鈥�, says John Wilmoth of the University of California, Berkeley.
Wilmoth and his colleagues studied death records in Sweden, which date back to
1861, and used a computer model to calculate the 鈥渁verage oldest age at death鈥�
for Swedish men and women. That average rose to about 105 in the 1960s, and shot
up to 108 in the 1990s (Science, vol 289, p 2366).