A hyper-realistic human face, seamlessly transitioning from extreme laughter on one side to uncontrollable tears on the other. The laughing side features wide, glimmering eyes and an exaggerated grin, while the crying side shows tear-streaked cheeks and sorrowful, bloodshot eyes. Fine cracks begin to form on the surface of the skin, spreading like a web from the center outward, symbolizing the gradual progression of symptoms. The background transitions from a soft, glowing light behind the laughing side to an ominous, deep shadow behind the crying side, representing the journey toward paralysis and death. Subtle, swirling mist surrounds the face, adding an ethereal and foreboding atmosphere, while faint, fractured particles float in the darkened background, enhancing the sense of inevitable decline.