摘要:AbstractSedentary associated with an inadequate diet is one of the major causes of obesity. Through this study we are trying on one hand, to come up with a program to inform about the effects of obesity over the body and on the other hand, a program to counsel and monitor the treatment of obesity among teenagers which can be the basis for implementing a healthy lifestyle. The study took place over a period of 9 months and followed three directions: somatic evaluation, information and intervention. With parental consent, the teenagers were monitored according to the data questionnaire and BMI evolution. Between the initial and final evaluation the students carried out a conducted program of exercises (4hours/week) on top of the physical education classes contained in the school curriculum. The study showed us that 65% of children who have followed the information-monitoring program have reached the weight appropriate to their age, 20% had decreases of BMI but had remained at different degrees of obesity. Unfortunately 15% of the children did not have a favorable evolution of the weight curve, which is explained by the absence of family support, the desire to lose weight and a varying degree of disinterest for oneself. This study has shown that the implementation of a program of information, education and monitoring the adolescents with overweight risk becomes effective if physical activity is associated with the balanced diet and counseling from specialists in nutrition and endocrinology