It is effective to go quickly. Fast walking 100 meters consumes the same amount of heat as running 100 meters.

For example: I can eat very much, I can't stop eating with my mouth and don't exercise.

But because I go to work every day, it takes 10 minutes to walk from home to the subway station; It takes 10 minutes to get out of the subway and walk to the company. I am recognized as fast ~ ~ ~

After eating so much, I still didn't gain weight.

So I think it's useful.