There are estimates that we daily walked for 10 - 20 kilometers for hundreds of thousands of years. The world's best problem solving machinery grew up under conditions of consistent, strenuous physical activity. It makes sense that when we don't recreate the environments in which the organ was forged, we get a loss of function. And that when we do restore those environments, we get that function back. The effects of aerobic exercise on executive function skills is a powerful empirical example of this idea.
John MedinaEven though we don't know squat about how the brain works, the little we do know suggests that if you wanted to design a learning environment that was directly opposed to what the brain was naturally good at doing, you would design the education system we currently have, not only in America, but all over the world!
John MedinaThe brain cannot multitask. Multitasking, when it comes to paying attention, is a myth. The brain naturally focuses on concepts sequentially, one at a time…To put it bluntly, research shows that we can’t multitask. We are biologically incapable of processing information-rich inputs simultaneously…Studies show that a person who is interrupted takes 50 percent longer to accomplish a task. Not only that, he or she makes up to 50 percent more errors.
John MedinaNot even identical twins can have the exact same experiences, and their brains are not wired the same way.
John MedinaIf managers knew how deeply their behaviors could affect brain function - whether they are piling up too much work on someone or yelling at them for "motivational purposes", they would quit doing it.
John Medina