Lucky Meisenheimer M.D. (born 1957) is a multi-talented American physician, open water swimmer , event director , aquapreneur , author and actor. His fiction novel, The Immune , is a science fiction thriller with political intrigue, his Guinness world record collection of yo-yos, and his authoritative guide, Lucky’s Collectors Guide to 20th Century Yo-Yos can snippets of hints of his eclectic and comprehensive mastery of various topics.