Prevention interventions belong to complex human interventions. They might have a huge impact on well being, quality of life. Thorough  quality considerations led planning and implemementation are crucial in meetin the nil nocere principle. Quality standards might contribute to the implementation of such interventions.

Mental health is a key determinant of quality of life, with a concrete impact on performance and the quality of relationships. It is particularly important to maintain mental health, coping strategies and develop appropriate skills and competences among adolescents and young adults. Ongoing research projects will explore this issue in more depth, explore the range of possible quality interventions and how to implement them, and translate lessons learned into practice.