A cinematic AI short documentary on Encephalitis Lethargica — the mysterious sleeping epidemic of 1915–1926 that struck nearly 5 million people worldwide. Patients fell into an unreachable state between sleep and waking. Some remained frozen for decades. Then the disease vanished without explanation. Every fact in this reel is medically documented.<br /><br />Tags: encephalitis lethargica, sleeping sickness, 1920s epidemic, medical mystery, unsolved disease, brain disease, 1918 flu connection, AI documentary, short documentary, history mystery, rare neurological disease
