The more you train, the beefier the brain
People who are keen to jump 27 metres off a cliff into the ocean may seem like they’re not quite right in the head, but turns out their brains may be beefier than the rest of us. Research shows the outer layer of divers’ (and other elite athletes) brains, known as the cerebral cortex, grows thicker each year they train.
So what? The cortex is vital for problem solving, language, social and motor skills, and more. Diseases like Alzheimer’s attack the cortex, so the stronger it is, the better your defences.