Understanding motivation and resistance factors affecting citizen participation in health and scientific research allows to find solutions to improve citizen engagement and interest in science. Through a survey, we identified the main factors influencing citizens' participation in scientific research, and their wishes to be more informed. Results show that the respondents' reasons to participate in research were altruistic motivations, in line with other studies carried out in developed countries. The main factor influencing the non-participation is the lack of opportunity, highlighting the importance to better inform citizens about ongoing studies.