'Fifty Shades of Growing Old' is really all about 'Growing Young' in your second fifty years. Lindsay Collier's popular "Growing Young Site' blog has been a great source of creative ideas on how to stay young for those in their second fifty years for several years, and this book contains some of the best articles from this site. Some say that growing old is like being on an airplane during a storm - once you're aboard there is nothing you can do about...