Obesity has been recognized by the World Health Organization (WHO), as the epidemic of the century. Inadequate UN Food and sedentary behavior, such as spending too many hours in front of television, computer, mobile phone and / or video games, we know that increases the risk of becoming overweight, being able to develop the so-called digital Obesity. The objectives of this article son: Give a Understand the concept of digital obesity and its harmful on Health and Promoting Healthy Habits from the familiar and community nursing implications. The prevalence of overweight and obesity in Spain is very high, with UN Obesity Cardiovascular Risk Factor Important. Community interventions reduce sedentary behaviors oriented one, have proven successful Prevent Obesity. We must address from Primary Care Modification Lifestyle, both from the nutritional point of view as encouraging exercise, trying to reduce sedentary activities related to the New Technologies. An active lifestyle a better mental health associates.