Want to be forever young? Find out where you should be living, according to RealAge.
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RealAge reviewed two dozens factors -- including stress, smoking rates, diet and exercise -- to determine the best U.S. cities to live in if you want to stay young. Here are the Top 20:
Celebrity may seem like a young person's game, but there are many celebrity senior citizens still out there working, including Friday's birthday girl, 75-year-old Jane Fonda, who would beg to differ.