If i understood your question right, the cars going straight have to keep going until the red light. but people going either left or right, have to slow down for the other people on the other side of the intersection to cross going either left or right.
Summary. While the left side of the heart becomes too weak to squeeze regular volumes of blood out of the heart when it pumps, this is known as systolic heart failure. Diastolic heart failure develops when the left side of the heart becomes too rigid to relax and fill with blood regularly.
True, children do go through many changes.
