A Wearable-Derived Autonomic Component Is Associated with Cardiovascular Health in Community-Dwelling Adults: A Cross-Sectional Analysis from the Longevity Check-Up 8+ Study - Riccardo Calvani; Fabrizio Sollazzo; Luca Maria Sarti; Antonella Gallo; Anna Picca; Hélio José Coelho-Júnior; Andrea Russo; Sara Salini; Massimiliano Bianco; Emanuele Marzetti; Vincenzo Palmieri; Francesco Landi; et al. (Medical Sciences, 2026)