What sugar does to your brain
I took a memory course (audio tapes) many years ago. One of the suggestions by the presenter was to not drink any coffee or alcohol or eat any white flour or white sugar before listening to each course.<p>I obeyed this rule for a few tapes, but then around the 4th tape, I said "phooey to that", and ate a bag of peanut m&m's before doing a course.<p>The difference in my attention span was so striking, I instantly became a believer in the adverse affects of white sugar on memory. I could not keep my focus on the course. My mind wandered like a 2 year old in a toy shop. Every idea that popped into my head distracted me from listening and focusing on the material.<p>As an aside, I had already learned to memorize all 52 cards in a deck and could do memory tricks with names and various lists. So I wasn't a memory newb when taking this course.