Almost Midnight Mass

The news that Pope Benedict will celebrate Mass on Christmas Eve at 10:00 pm rather than at midnight has some people worried.  Is the Pope sick?  My wife and I have had the opportunity to attend a Mass at which His Holiness was the presider.  It is no easy task for anyone, let alone a man in his 80s.  He has to hop around quite a bit and do a fair amount of singing - all while wearing some vestments that are not too light.  I am just fine with the Pope celebrating the Christmas Eve Mass a bit earlier, especially since he can't ask the parochial vicar to handle the Christmas Day Mass the next morning.