#39: Amazonian Tribe Doesn't Have Words for NumbersThe Pirahã people overturned scientists' belief about human cognition.
#56: Memory Training Can Make You Smarter Your intelligence isn't just what you're born with.
#58: Smart People Are Better Able to Keep a Beat Good neural functioning is good neural functioning.
#72: Prozac Cures Lazy Eye The antidepressent might be the answer to wiping out amblyopia for good.
#86: You, Too, Have a Photographic Memory When put to the test, your brain remembers images with astonishing accuracy.