Author, motivational speaker and former pro-skier Bonnie St. John had her right leg amputated at age 5, but that has never slowed her down. The San Diego native made a Paralympics run in 1984 and became the first African-American to win medals in Winter Olympics competition. A Rhodes Scholar, St. John went on to serve on the White House National Economic Council and has written seven books, including one with her husband called "Micro-Resilience," which outlines five frameworks for small "life hacks" to help boost focus and energy.