Health & the Body - 50 free documentaries about hospital life.
Start with Gun Shot Wound: A Trauma Surgeon's Grim Reality (52 min, ENDEVR), then Accompanying a nomad doctor in Mongolia (18 min, DW Documentary). All 50 documentaries here are free to watch from their makers' official uploads. To read deeper, the top-rated book on hospital life is Complications by Atul Gawande.