​The time around puberty is characterized by major physical, hormonal, psychological and social changes. For many, mental vulnerability comes with it, but it is also a period with great potential for psychological development and growth, where the prerequisites for well-being and development in adolescence are established. Therefore, knowledge of causal factors and signs of physical and mental health problems during this period is crucial for us to plan effective prevention of problems in adolescence.

More than 2300 11-12 year olds were surveyed in 2011-2012. The studies included web-based questionnaires about the child's mental strengths and weaknesses, which were answered by the children themselves and by their parents and teachers. Also included were questionnaires on symptoms of mental health difficulties, physical health complaints and health anxiety, and prevalence of problematic eating behavior.

A large group of children participated in physical examinations of height, weight, blood pressure and pubertal development. Eye examinations were carried out for eye development, nerve cell development and growth conditions and early signs of myopia. The examinations also included questionnaires for the parents regarding the child's physical health and doctor-diagnosed illnesses.

The children participated in specific studies on understanding social interaction, interviews for the occurrence of symptoms of anxiety, depression and psychosis, as well as experimental studies of signs of vulnerability for the development of psychosis.

The results from the 11-12 year studies show that the frequency of mental health difficulties increases around puberty, especially for anxiety and depression, but also for ADHD and behavioral disorders. Problematic eating behavior is related to disturbed body image, overweight and underweight, and various forms of mental health difficulties.

Symptoms of health anxiety are relatively common and, as in adults, are associated with increased healthcare utilization.

Psychosis experiences are associated with sleep problems, anxiety and depression. In addition, disturbed ability to empathize with others' feelings and thoughts (mentalization) is a specific precursor to psychosis experiences.

Overall, the results point to possible areas for early intervention. See the publications​ tab for a list of our articles on this topic!