Is HIIT better than walking?

It depends on your goals. HIIT burns more calories quickly and boosts metabolism through EPOC, making it better for fat loss and fitness improvements ( 1 ). Walking is less intense, easier on joints, and great for low-impact activity or recovery days.

What exercise burns the most fat?

Exercises that combine high intensity with full-body engagement, like HIIT , sprinting, or burpees, burn the most fat. However, fat loss ultimately depends on creating a calorie deficit, regardless of the exercise.

Why am I so tired after a HIIT workout?

HIIT is physically demanding and quickly depletes your energy stores because it pushes your body close to its maximum effort. Fatigue can also result from insufficient recovery, poor nutrition, or dehydration.

How do I know if I am overtraining?

Signs of overtraining include constant fatigue, decreased performance, prolonged muscle soreness, irritability, and trouble sleeping ( 14 ). It may be time to rest or reduce workout intensity if you feel unmotivated or notice a lack of progress.