RULE 1 MARATHON CARDIO SESSIONS ARE OEVR
esearch has proven as incorrect the idea that steady-state forms of aerobic exercise, such as running, cycling and swimming – which supposedly elevate your heart rate into the “fat-burning zone” – are good for fat loss. If anything, too much long-distance cardio actually encourages your body to store fat. The high-intensity circuits in this guide will ramp up your body's metabolism for optimum fat loss, so you burn more calories than you would jogging around
