One More Video: Perceived Productivity Loss Mediates the Relationship Between Instagram Doomscrolling and Bedtime Procrastination in Young Adults. Physical Education, Health and Social Sciences, [S. l.], v. 4, n. 2, p. 1–17, 2026. DOI: 10.63163/jpehss.v4i2.1266. Disponível em: https://journal-of-social-education.org/index.php/Jorunal/article/view/1266. Acesso em: 6 may. 2026.