By: Julie Stewart Working out is one of the healthiest things you can do for your heart, so imagine exercising intensely for a decade—like cycling at least 25 hours a week—and then finding out you have, of all things, ...

1  Lifts your mood 2  Improves learning abilities 3  Builds self-esteem 4  Keeps your brain fit 5  Keeps your body fit & able 6  Boosts mental health 7  Boosts your immune system 8  Reduces stress 9  Makes you feel happier ...