According to psychiatrist Rodrigo Bressan, head of the Ame Sua Mente Institute, research indicates that 75% of adult mental disorders begin before the age of 24. In the case of teenagers, half start before the age of 14.
Sarah de Aguiar was 13 years old when she started to cut herself. She would have continued to inflict injuries on herself had she not been interrupted by her mother, Weslayne de Aguiar. After promising never to do it again, Sarah asked for help in her school.