Your brain shrinks as you age — and now scientists can prove it

Scientists have long understood that the human brain changes in size as we age, but until now there’s never been a method by which we can chart its growth. An international team of researchers led by Cambridge University’s Richard Bethlehem recently published the world’s first growth chart for brains. Up front: How are you supposed to tell if your brain is growing properly? It’s an important question. And we’ve had no answer until now. Most people don’t spend