Ok, let's face that, everyone nowadays wants to look great and feel energetic. We know thousands of diets and we exhaust ourselves in the gym, but the result is not always the same as we expected, that's because there is no system. As I've learnt recently you can simply calculate your target heart rate zone and make your trainings times more effective, I tried that with my Beets BLU hrm,it really works. And what are your secrets of effective workouts?
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