I tried the 12-3-30 treadmill workout for 30 days and science reveals the catch
The 12-3-30 treadmill workout exploded across social media with promises of effortless fat burning. Lauren Giraldo’s viral video claimed dramatic transformations using just 30 minutes of walking. But when researchers finally put this trendy routine under scientific scrutiny, they discovered something unexpected. The 2025 metabolic study reveals why millions of followers might be missing the … Lire plus









