Last year I was talking with Brad Kearns and Dave Dolle when Dave said something really interesting: he was using neurotransmitter analysis to build personalized training programs for his athletes. By giving a short written T/F test called the Braverman test, he could determine whether a client was dominant in dopamine, acetylcholine, GABA, or serotonin—and then use the results to determine their ideal training regimen. It was one of those instances where you hear something you know you’ll be chewing on for the next few months.

(This Mark's Daily Apple article was written by Mark Sisson, and is narrated by Tina Leaman)