AGHLS is a multidisciplinary cohort study that was initially set up to examine growth and health among teenagers in the Netherlands. In 1976, around 400 students from two secondary schools from the greater Amsterdam area were included in the study. Between 1976 and 2006, 10 rounds of measurement were performed covering an age range between 13 and 43 years. During the adolescence period, participants were measured annually during school hours, and thereafter, six more follow-ups took place.