The Brain

It coordinates our movements, our words, our relationships, and the ability to pass on our genes. | Our body, therefore, protects the organ fiercely: The central nervous system polices particles traveling through the bloodstream and invites only the safest into our cognitive chamber. | This selective process occurs due to a proactive boundary known as the blood-brain barrier. | The brain is our most treasured possession. | The barrier serves a vital role but it also poses a tremendous challenge for scientists developing drugs to treat brain-based disorders.