VATICAN CITY (April 21) - Pope Benedict XVI himself predicted a "short reign" in comments to cardinals just after his election, and his brother said Wednesday he was worried about the stress the job would put on the 78-year-old pontiff.

While there are no indications that Benedict currently suffers from any serious or chronic medical problems, there have been ailments in the past - including a 1991 hemorrhagic stroke - that raise questions about how long his pontificate will last.
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