Most teenagers nowadays worry too much about how they look on the outside – is their hair shiny enough? Is their skin soft to touch? Is their waistline sexy enough? What most teenagers don’t realize is that everything that they hope to see on their bodies when they look at the mirror can be achieved by being healthy and beautiful from within. Whatever you put into your mouth can affect your physical appearance, not only today, but also as you grow older. Perhaps the first step towards keeping a teenager’s body healthy is to drink more water and following a healthier diet. It’s no surprise that teenagers nowadays prefer to drink soda and eat in fast foods more often than they drink water and eat a healthy meal. Here’s an eHow article that will give us more tips on how to keep teenagers healthy inside and out.