You may remember the 12-3-30 workout from a few years ago. Its simple premise and set-up made it a viral sensation on social media - and a great option for those looking to get fitter, maintain muscle, and improve their balance. In 2026, it's as good as ever.
The 12-3-30 is a treadmill workout made popular by influencer Lauren Giraldo. She said: "I used to be so intimidated by the gym, and it wasn't motivating. But now I go and do this one thing, and I can feel good about myself."
