The brain chemicals behind your mood, sleep, and body functions Ever wonder what's going on in your brain when a certain mood strikes? You can thank your neurotransmitters. Neurotransmitters are tiny ...

Japanese researchers have uncovered how the astringent “bite” of cocoa flavanols can activate the brain—even though little of the compound enters the bloodstream.

Scientists have found the first compelling evidence that cognitive training can boost levels of a brain chemical that ...