“Try this,” he said with a grin. “It’s hard to lift heavy when you’re fighting the music. You have to find a instead.”

Once a week, traded his corporate tie for a pair of beat-up headphones and a gym bag. While the other lifters at "The Iron Vault" blasted heavy metal to fuel their aggression, Leo always hit play on the same nostalgic track: “Stereo Hearts.”

To him, the song wasn't just a catchy melody; it was his . As Gym Class Heroes sang about a heart being a stereo, Leo imagined his own pulse as the bass line and his breath as the rhythm .

Maya took the earbud, skeptical. But as the upbeat tempo and soulful hook kicked in, her shoulders relaxed. She stopped fighting the weight and started moving with it. Her heart rate synced to the beat, turning a grueling set into a fluid dance of strength. By the time the song ended, she had hit a new personal best.