Heart Rate Zones http://gl12.net/cardiosprawl - CLICK this link to train all 3 of your PROPER heart rate zones, burn more fat and put the fun back in your cardio training with "Cardio Sprawl". In this video, Shaun reveals the REAL truth about heart rate zones and proper intensity for maximum fat burning. Some of this is the complete OPPOSITE of what your average personal trainer will tell you (and it's actually correct). http://www.youtube.com/watch?v=ugSk0eUrUDI