This is your child’s brain on books: Scans show benefit of reading vs. screen time

The brain’s gray matter contains the majority of the brain cells telling the body what to do. White matter is made up of fibers, typically distributed into bundles called tracts, which form connections between brain cells and the rest of the nervous system. Increasing and organizing white matter is critical to the brain’s ability to communicate across its various parts, boosting its functionality and ability to learn. Without a well-developed communication system, the brain’s processing speed slows and learning suffers. …

CNN