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Speed up, slow down

Alternating bouts of high-intensity and low-intensity cardio has been shown to torch pounds.

Put on weight (literally)
Wearing a weighted vest (about 10% of your body weight) while walking can boost your calorie burn by 8%.

Download Rihanna, not Brahms
Listening to up-tempo songs actually makes you run faster and harder than listening to slower-paced music, British scientists say.

Next: Let kettlebells ring