Terry Pratchett (popular author) is 61 and has been talking a lot recently about assissted suicide, since his diagnosis with dementia. He says if it got too bad he would like to take the option. The disease is quite unpredictable and he's even been having small improvments with experimental treatments, but it's an interesting series of events.
According to Cherie Blair the Queen said she didn't expect to be alive for the 2012 Olympics. Considering that she's 83 and her husband is 88 and has been having health problems, coupled with the pairs very busy lifestyle it's also an interesting development.