Yeah, I came here to say: Exercise. I was just reading a book called "The Secret Life of the Grown-up Brain: The Surprising Talents of the Middle-Aged Mind."

Yeah, I came here to say: Exercise. I was just reading a book called "The Secret Life of the Grown-up Brain: The Surprising Talents of the Middle-Aged Mind." One chapter discusses the 21st-century discovery of the brain's ability to create new brain cells in a crucial area....after exercise. It ran counter to 100 years of biological theory, but it was confirmed and confirmed again. Exercise. The only thing I'd add is: lowering stress. (Because stress damages your brain.) Meditation, sleeping well, having a healthy social life can all help. Basically, if you start taking basic steps to improve your general health...you will in fact improve.