Losing more than 100 pounds is next to impossible at any age, so it's seriously impressive to see how much weight Al Roker has lost at 58.
The Today Show weatherman has publicly battled the scale for the past decade, and he's sharing the highs and lows of his weight loss journey in a new book: Never Goin' Back: Winning the Weight Loss Battle for Good.
You may remember when Roker made headlines in 2003, after getting gastric bypass surgery. The procedure helped the TV host shrink from his heaviest weight of 340 pounds down to just 190.
Roker later revealed that a dramatic conversation with his father urged him to get the surgery. "[He] said, 'Look, I'm not going to be here for your kids. And you've got to be here for your kids. So I want you to promise me you're going to lose weight.'"
While the surgery was a major success, Roker struggled to keep the weight off. But a change of plan helped the weatherman get back in shape, and he looks incredible today.