Fastest Fat Burners Ever!
Go hard and make it quick
Staying at 80% of your max heart rate for 40 minutes can amp your metabolism for 19 hours afterward, research published in Obesity notes. And doing a shorter workout at 75% of your max aerobic capacity will give you a greater metabolic boost than sweating longer at 50%, a Colorado State University reveals.
Next: Lift dumbbells … slowly
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