World in Motion 🕹️🧠 on Instagram: "Rusty, a dachshund with narcolepsy, became widely known thanks to a short educational film released in 1991. The video was often shown in psychology and sleep disorder courses to illustrate how the condition affects behavior. Rusty’s case was both fascinating and heartbreaking — one moment he would be running around, full of excitement and energy, and the next, he would suddenly drop into a deep sleep without warning. At times, it seemed as if his legs simply