John Cleese reveals £17,000-a-year battle to stay young: 'I think it’s worth it'

John Cleese has revealed that he has spent £17,000 every year for the past 20 years on a stem cell therapy to combat aging.The Monty Python star, 84, admitted that he travels to Switzerland to undergo the treatment, which helps repair cells in his body, every 12 to 18 months.