Research shows that the brain can be exercised, much like our muscles.

(PITTSBURGH) If you have ever lifted a weight, you know the routine: challenge the muscle, give it rest, feed it and repeat. Over time, it grows stronger.

Of course, muscles only grow when the challenge increases over time. Continually lifting the same weight the same way stops working.

Originally published on theconversation.com, part of the BLOX Digital Content Exchange.