Max Kozlov Researchers have created brain growth charts that cover the human lifespan by aggregating more than 120,000 scans.Credit: Zephyr/SPL When neuroscientist Jakob Seidlitz took his 15-month-old son to the paediatrician for a check-up last week, he left feeling unsatisfied. There wasn’t anything wrong with his son — the youngster seemed to be developing at...