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The Blood-Brain Barrier: Structure, Function, and Associated Diseases

The blood-brain barrier is a membrane that separates the blood from the cerebrospinal fluid in the nervous system. It is made up of endothelial cells, which are connected by tight junctions, and helps to protect the brain from harmful substances in the blood while also regulating the environment of the brain.

ADHD: An Overview

This essay discusses attention-deficit hyperactivity disorder (ADHD), including its symptoms, causes, and treatments.

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