Bidirectional effects of physical activity and sleep on health: evidence and future directions - Clemente-Suarez, Vicente Javier; Redondo-Florez, Laura; Beltran-Velasco, Ana Isabel; Ramos-Campo, Domingo Jesus; Ruisoto, Pablo; Yanez-Sepulveda, Rodrigo; Martin-Rodriguez, Alexandra; Tornero-Aguilera, Jose Francisco (FRONTIERS IN SPORTS AND ACTIVE LIVING, 2026)