During school age a balance is required in daily activities among duties, responsibilities, distractions, and pleasures. Preteens and teens face their daily commitments by trying to best adapt their study duties, family and social needs, entertainment, and hobbies, coordinating everything with their sleep and eating habits. Here is a brief overview of the main factors that influence young people’s lifestyles, focusing on the importance of regular exercise as a key element in combating a sedentary lifestyle. It is easier to change certain habits in youth. The effort to make the most appropriate decisions in everyday life characterizes success in various activities: from school performance to performance in physical education & sports. And, more importantly, it helps to achieve greater levels of serenity and satisfaction. Aside from the family environment, school is the place where young people spend most of their time. Physical education, the introduction to sports, and sports practice play a very important role in the healthy and complete growth of the individual. It is important to recommend a harmonious global vision of the dimensions that characterize lifestyles to young people in order to help them in their constant search for balance, a search that will influence each person’s life path and that must oppose to a sedentary lifestyle as much as possible.