Since the dawn of time, or at least since researchers started poking and prodding the human brain, it was assumed that the brain was fixed in structure. Whatever brainpower you had was a done deal, not a work in progress. The only change your brain was going to see was the deterioration of getting old. But over the last decade, neuroscientists have discovered that, like an eager student, the brain is remarkably responsive to experience. Ask your brain to do math every day, and it gets better at math. Ask your brain to worry, and it gets better at worrying. Ask your brain to concentrate, and it gets better at concentrating.
- From “The Willpower Instinct: How Self-Control Works, Why It Matters, and What You Can Do to Get More of It”
by Kelly McGonigal