http://www.cnn.com/2010/WORLD/europe/12/30/uk.centenarians/index.html?hpt=T2
This article says that 1/6th of the population currently living in Britain can expect to live to their 100th birthday. In 40 years, that figure will likely be much higher. How long do you think you will live and have you financially planned for the possibility that you could live for 30-40 years after your retirement?