Ryan Hall gained 40 pounds since retiring from professional running last winter. But he didn't gain this weight from a steady diet of hot dogs and cheeseburgers—it's all muscle. In April, Hall tweeted a selfie that displayed his new, toned physique and disclosed his new weight: a stout 165 pounds.
Hall announced in June that he's going to participate in the World Marathon Challenge, a brutal test of endurance and recovery where runners attempt seven marathons on seven continents in seven days. While he won't be anywhere near his personal best 2:04:58 (fastest marathon ever by an American), he'll instead opt for a leisurely 6 to 6:30 minutes per mile pace, according to an interview with Sports Illustrated.
On this running legend's Twitter account, you can keep up with his newfound passion for weight training, his never-ending love for running as well as other philanthropic pursuits.