Teresa Freire is Associate Professor with Habilitation, in the Department of Applied Psychology, School of Psychology, in the University of Minho, where she is effective member of the Psychology Research Center (CIPsi), being the Coordinator of the Development an Psychotherapy LAB, and of the Research Group on Positive Development and Optimal Functioning, focused on Adolescence/Youth. This Research Group aims to study the quality of adolescents/youth' subjective experience in daily life, crossing personal and contextual variables (ecological perspective), in order to understand positive patterns of human functioning (through cognitive, affective, motivational and behavioral dimensions). Studies include mixed-method approaches, using traditional retrospective self-report (e.g., scales and questionnaires) and innovative methodologies based on real-time measures (e.g., Experience Sampling Method – ESM). The team integrates undergraduate, master and PhD students, professional psychologists, and several international professors (partners). Topics of research include: positive development, well-being and mental health, optimal experience/flow, emotion regulation, resilience, considering different normative life and clinical contexts, and environmental issues, following ecological approaches. Target contexts in the life of adolescents/youth are under research: climate change, leisure, family, schools and virtual contexts. Projects under her supervision aim at studying the developmental trajectories of adolescents/youth using an integrated and equally weighted focus on both positive and negative functioning, understood as optimal functioning. At the University of Minho structure, she is scientific co-coordinator of the Peer Tutoring and the Mentoring UMinho Programs aimed at promoting students' transversal skills from the first years until the transition to the labour market. She is member of the "Ordem dos Psicólogos Portugueses", and at the University, she belongs to the Psychological Association of the University of Minho (APsi-UMinho), where she coordinates the clinical adolescence unit. This Association provides psychology services to the community (inside and outside the university). She has been part of staff structures in the School of Psychology, as for example Pedagogical Council and School Council. She is currently member of several international organizations, such as, member of the Board of Directors of the "World Leisure Organization", of the "Groupe Interdisciplinaire de Recherche sur L'expérience Inclusive de Loisir"; she is also member of scientific Journals Editorial boards (as for example, Associate Editor). She is author of several international publications in high impact Journals, book chapters and books' editor.