BARNET, ENGLAND - DECEMBER 04:  Elderly people take part in a Tai Chi Class at the AgeUK Ann Owens Centre on December 4, 2013 in Barnet, England. AgeUK are a nationwide charity organisation that work with the growing number of elderly people throughout the UK. They run a number of activities for the elderly ranging from cookery classes to Tai Chi and try to improve the lives of pensioners from loneliness to fitness. (Photo by Bethany Clarke/Getty Images)