Why do strokes affect the voice?

Answer 1

My grandpa had a stroke and he almost lost his ability to talk and half his body was paralyzed. My idea is that when a stroke happens it clogs a main artery to the brain thus causing your body to cease up. After the stroke you get some major damage to your body and it affects the side of the brain that is with your motar skills and such and it makes it hard to speak. It's something to do with the brain but if someone has a better answer then they could post here.