Pop quiz: If you answered with the usual and classic wisdom, you said 10%. And you’d be wrong. According to Amishi P.Jha, author of Peak Mind: Find Your Focus, Own Your Attention, you are actually using 100% of your brain! She is a professor of psychology and director of contemplative neuroscience at the University of Miami. And she has conducted extensive experiments in situations from isolated meditative retreats to high-stakes situations with the military…..