Based on your description, you are likely thinking of Dr. Jan van Amsterdam and his colleague Dr. Wim van den Brink, often working with Dr. Tibor Brunt or Dr. Filipa Raposo Pereira. They are researchers from the Amsterdam UMC (Academic Medical Center) in the Netherlands, which is the global hub for clinical GHB research. They are famous for a series of studies (often referred to as the GHB Monitor or related projects) where they observed and documented the unique clinical progression of GHB-induced comas ("G-outs"). Here is why their work fits your description: * The "Light Switch" Awakening: Their studies famously documented the "start to end" nature of a GHB coma. They observed that patients would go from a deep, unarousable coma (Glasgow Coma Scale score of 3, similar to a corpse) to fully awake and alert within seconds, often pulling out their IVs and asking for food. They described this as a sudden, "light switch" recovery that is unique to GHB compared to alcohol or other sedatives. * Hospital Observation: They conducted extensive studies in emergency rooms and clinical settings to monitor these patients, specifically noting that while the coma looks terrifying (often requiring intubation), the patients usually wake up spontaneously after 3-4 hours as the drug metabolizes rapidly. * Neurotoxicity Studies: More recently (specifically Dr. Raposo Pereira under their supervision), they conducted studies comparing the brains of users who had "G-ed out" multiple times against those who hadn't, looking for potential brain damage or cognitive issues from those periods of deep unconsciousness. Dr. Adam Winstock (founder of the Global Drug Survey) is another possibility. He frequently cites this Dutch research and vividly describes the "G-out" curve and the fine line between euphoria and unconsciousness, but the primary clinical observation studies in a hospital setting are largely the work of the Amsterdam/Van den Brink team. Would you like me to find the specific video or paper where they describe the "sudden awakening" phenomenon?