I'm 15, and I used to have a really fast metabolism. Now it has slowed down, why!

I'm 15, and I used to have a really fast metabolism. Now it has slowed down, why is this?

How is this possible if I am still young? What can I do to get back to the fast metabolism I once had?

2 weeks ago
this is really depressing

When you are younger you tend to eat what your parents tell you and when they tell you. As you get older you choose your own foods and for the most part you dictate how and when you excercise. Not just structured excercise but also excercise from playing and just running around. When you don't eat healthy and don't get enough exercise your metabolism will drop dramatically. Eat healthier and on a normal schedule, and make sure to go out and have fun and get moving.