This special issue of Medi@ções magazine is the result of a challenge issued to authors at the 3rd CIEQV International Congress: innovation and sustainability for a quality future, inviting them to write articles for this publication.

The Centre for Research on Quality of Life (CIEQV) is a multidisciplinary R&D unit evaluated and funded by the Foundation for Science and Technology (FCT - UID/04748/2025). The Polytechnic Institute of Setúbal joined the consortium on 22 January 2024 and from the outset made itself available to organise the 3rd CIEQV International Congress, an event that takes place every two years. The congress, held on 27 and 28 February 2025 at the School of Education of the Polytechnic Institute of Setúbal (ESE-IP Setúbal), was attended by national and international researchers and was a special moment for sharing knowledge, establishing networks for future research projects and reflecting on the work carried out in conjunction with the Advisor Board for the different lines of research. The researchers from CIEQV-IP Setúbal, with the collaboration of the ESE Management, formed the Organising Committee. At the 3rd CIEQV International Congress, conferences, oral presentations and e-posters were presented within the scope of CIEQV's lines of research: a) Quality Education; b) Social Sustainability and Entrepreneurship; c) Sustainability of Agri-Food Systems; d) Physical Activity.