Cardio vs weights - which burns more calories

Walk into any gym and you will hear two camps. One says cardio is the only way to burn calories. The other says weights are the real answer because they 'boost your metabolism'. Both are half right, and both are overselling. Here is the honest version: cardio burns more calories while you are doing it. Weights burn fewer calories in the moment, but they build and keep muscle, and muscle quietly raises your resting burn a little every day. So the best choice is not one or the other. It is both, used for different jobs. This article gives you the real per-session numbers, with no tribalism.