human
I've heard that a treadmill is a good workout, but is that really true?
assistant
It depends on your goals and fitness level. For beginners, walking or jogging on a treadmill can be an excellent way to get in shape. A treadmill provides the benefit of steady incline and speed control so you can gradually increase intensity over time. If you're looking for more of a challenge, you can try interval training by alternating between periods of high-intensity running with short rest breaks.