High-Intensity Interval Training (HIIT)

HIIT is the most efficient exercise for weight loss, combining explosive effort with recovery to maximize calorie burn. Its afterburn effect (EPOC) elevates metabolism for up to 24 hours post-workout, torching 300–400 extra calories beyond the session itself. A 2023 study showed HIIT burns 25% more fat than steady-state cardio over eight weeks, outperforming #3 Running in time efficiency and #4 Swimming in post-exercise metabolism. This data-led approach makes HIIT the top tool for rapid, sustainable fat loss.