What do you have in side of your body that makes you move? (hint: not heart

 Your muscles. Some muscles are “voluntary.” They are the ones you control, the ones that let you exercise—or relax. Some muscles are “involuntary.” They just do their job with no effort on your part—like your heart muscles.

Your brain sends messages to your nervous system and to your bones and muscles that tell you when to move and how ti move

True, using a pedometer can promote a physically active lifestyle.

Depression is lifelong, though you can get medication to with it. the difference between sadness and depression is that sadness lasts a little bit, depression last a long time and it goes on and off. people usually get depression through experiences they have been through, or genetics.