Lace up your shoes and strap on that shiny leotard because it's time to sweat. Trivia and origin stories of things, people, and places that keep yourself fit. Take the atheletic brand quiz and find out where the names like Reebok and Adidas came from. Karen admits to some very candid and personal issues people go through when engaging in endurance sports. Find out why people hit the gym, and where the concept of "the gym" originate from. Do you know your infomercial fitness products and the celebrities who endorse them?