2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/224962In this paper we give a brief report of our recent research on Double Periodic Variables (DPVs), including the discovery of DPVs in the Galaxy and some insights on the nature of their long-cycle variability.To appear in "Proceedings of the XII Reunion Latinoamericana de la UIA", Revista Mexicana de Astronomia y Astrofisica, in pressSolar and Stellar Astrophysicstext