JBL EMT Practice Exam 2026 - Free EMT Practice Questions and Study Guide

An increase in age can cause a decrease in neurons, leading to thinning of the cerebral cortex and weakening of the blood vessels that support it. Thinning of the cerebral cortex can also lead to an increase in blood vessel dilation, but this is more indirect. Meningeal deterioration and shrinkage of the brain are not directly linked to the risk of bleeding in the skull.