Chronic obstructive pulmonary disease is a disease of adult age, but pediatricians can do a lot in order to prevent it. How? Professor Renato Cutrera (Head of the Pediatric Pulmonology Unit, Respiratory Intermediate Care Unit, Sleep and PLTVU at the Bambino Gesù Childrens’s Hospital, Rome, Italy)  explains the importance of avoinding passive and active smoking in teenager that were infant and children with recurrent wheezing.