So the parasympathetic division of our autonomic nervous system is responsible for the rest and digest activities. This means it increases the flow of blood to our digestive organs and excretory system. So that means the blood vessels carrying blood to our digestive organs increases in size, they dilate, while our blood vessels that carry our blood to our skeletal tissue decreases in size. And so we have a decrease in blood flow because we don't have to worry about moving our arms or legs. We're not actually running, we're sitting down and we're watching television. So this is what the parasympathetic nervous system does.