“…However, in addition to habits or lifestyles, there are social and psychological factors that contribute to young people’s well-being and therefore influence their HRQoL. Family relationships, for example, have been shown to be an important conditioning factor of adolescent well-being [ 19 , 20 , 21 , 22 ], relationships between parents [ 23 ], relationships with peers [ 19 , 24 ] or satisfaction with school [ 25 ]. For example, the study by Sánchez-Alcaraz showed significant correlations between all dimensions of HRQoL, with students with better self-esteem and better relationships with family, friends and school having a higher quality of life [ 26 ].…”