Wash your hands before coming to the table, your mother used to tell you. She was afraid you would contaminate your food with the bacteria stuck on your hands from playing outside. Hygiene is very important, also for the brain….
Our brain isn’t populated only by neurones. In fact, they are a minority. Other brain cells, called glial cells, are far more numerous. Unfortunately, they have long suffered from the ‘neuron doctrine’. All attention and research efforts went to the…