Ernestine Shepherd, one of the world's oldest bodybuilders, turned 80 this month—and she's making us all want to hit the gym. While we're not about to join her for 3 a.m. workouts or 10-mile runs (did we mention she's a badass?), Shepherd's story is a great reminder that it's never too late to adopt healthy habits. She didn't start exercising until she was 56!

READ THIS NEXT: The Best Instagram Accounts for Non-Cheesy Fitness Motivation