Weightlifting, running, swimming and biking are all calorie burning activities that make us look and feel better, but doctors say they also have benefits later in life.

Not only do those exercises help stave off diabetes, a problem affecting more than 25 million Americans, but a new study shows that hitting the gym has benefits beyond feeling and looking great.

Dr. Timothy Johnson tells us that, for younger people, there may be some hidden bonuses years down the road.