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In this instructional video, the speaker explains how the body’s metabolism adapts as fitness improves, causing the same cardio effort to burn fewer calories over time. He outlines how to counteract this by increasing cardio intensity—faster pace, longer distance, or incline—but emphasizes that cardio should primarily serve heart health rather than calorie burning. He contrasts this with weightlifting, noting that building muscle raises the body’s resting calorie expenditure, making resistance training a more effective tool for weight loss. The core recommendation is to prioritize resistance training and maintain a calorie deficit through nutrition, using cardio only as a supplemental activity for cardiovascular benefits.
