Leading a healthy lifestyle is just one of the many challenges we face in our lives. It's just too easy to eat what we want, skip exercising, and generally not take care of ourselves. We struggle with -internal- desires such as wanting to go to that all you can eat buffet or to just sit in front of the TV and munch on our favorite snacks, such as potato chips and/or chocolate chip cookes. There are also -external- battles that confront us daily as well; those fast food restaurants that serve predominantly high fat foods with little nutritional value, and convenience stores that are stacked...