I Run 30 To 40 Minutes On My Treadmill Everyday With The Speed Of 6.5 Miles Per Hour - Is That Good Cardio?

I mean - does that contribute well to my weight loss? I have a small belly but still and would like to loose it so I can work on getting a sixpack. . . Also, is that good stamina training?
Running outside is something I won’t do, as there is nowhere to run to and I don’t really want to. . . I’ll add that I’m 15 yrs old if that helps.

What Is The Purpose Of All Those Sit Ups? What Good Is A Sixpack Of Washboard Abs In A Physical Confrontation?

Does it really make a difference in a fight or would it be better to have some fat to absorb some of the impact of a body shot?

How To Get Really Good Abs Fast?

Ive been trying for years but im not seeing any results, please help me when I do the exercises and what not. Thank you very much.

What Are Good Workouts To Build Abs Fast?

I Need Some help with building my abs. They are good but some have four package until now haha. What are the best exercises to do?