Lupita Nyong’o caused an uproar and quickly apologized for revealing she copied a rare disorder to create the voice of her scary character in the horror movie “Us.” But what exactly is spasmodic dysphonia?

Lupita Nyong’o caused an uproar and quickly apologized for revealing she copied a rare disorder to create the voice of her scary character in the horror movie “Us.” But what exactly is spasmodic dysphonia?