Cardio can be one of the fastest ways to burn extra calories, but with so many different cardio machines available, it can also be difficult to understand which ones are best for losing weight — ...

SAN FRANCISCO -- The RX2, BurnBot's second generation-controlled burn machine, came into action as it burned a path through grass in Martinez, Calif. near San Francisco on Tuesday. "It's a machine to ...

I used to think burning 3000 calories meant living on the treadmill for hours. Spoiler alert: I was completely wrong, and it nearly burned me out completely. I’d drag myself to the gym, spend what ...

The answer: In a word, no, says Justice. Most cardio machines use your weight and age to calculate the calorie burn for the average person meeting those two conditions. What it's not always accounting ...