Kristin Armstrong turns 43 today. She works as the Director of Community Health for St. Luke's Hospital in Boise, Idaho. She is happily married to her husband, Joe, and has a five-year-old son named Lucas. And as of yesterday morning, she has three Olympic gold medals. She is the only cyclist to win three consecutive gold medals in the same discipline (she previously won at the Beijing Games in 2008 and the London Games in 2012).