Childhood Overweight

The aims is to evaluate the effects of an multidimensional intervention on the physical-built and social environment around schools and the nutritional status of the school population, through a randomized community trial, in schools in 3 states of the Mexican Republic, using anthropometric indicators, biological, psychological, behavioral and environmental. The main questions it aims to answer are: 1. What are the main risk and protective factors for overweight and obesity in the school environment and in the environments around schools in primary education schools in three states of the Mexican Republic? 2. Is there a relationship between risky eating behaviors and the body mass index of schoolchildren? 3. Are the strategies that are being implemented effective in reducing the presence of risk factors and increasing the presence of protective factors for overweight and obesity in the school environment and in the environments around schools? 4. Are the strategies that are being implemented effective in reducing the presence of risk factors and increasing the protective factors for overweight and obesity in the family environment?

The goal of this non-randomized clinical controlled trial is to evaluate the impact of a playful family education strategy reinforced by the use of communication technologies in childhood obesity. The main questions to answer are: * Does a technogical reinforced ludical family strategy might reduce overweight and childhood obesity prevalence and incidence reduction? * Can digital reinforcement might decrease body weight, BMI, body fat mass and waist circumference in overweight or obese children? * Does dietary habits might be improved by a technologically reinforced playful family workshop? Researchers will compare an obesity childhood digital reinforced group to an overweight control overweight group, an overweight workshop group and a childhood obesity control group to see if technological reinforcement works to reduce and prevent childhood obesity.

Large-for-gestational-age (LGA) infants have a higher risk of metabolic disease later in life, and their postnatal growth in early childhood may be associated with long-term adverse outcomes. The purpose of this study is to explore whether comprehensive lifestyle intervention in the first year after birth in LGA infants will reduce the rate of overweight/obesity at childhood and improve neurodevelopmental outcomes and its possible mechanism.