How Twitter, Pocono Raceway and Dale Earnhardt Jr. joined NASCAR fan's weight-loss journey

Eric Webler remembers vividly the first time he went to Pocono Raceway. Just 10 years old at the time, Webler, now 24, can recall the date in a split second. It was Sunday, June 10, 2007. His favorite Hot Wheels and diecast collectible cars came to life in front of his eyes for the first time. The shear speed of the cars going nearly 200 mph always kept Webler glued to the TV for races, now he got to witness it firsthand.