I sometimes am asked questions about whether or not eating breakfast is important. There are, of course, opinions on both sides of the question. Breaking the fast from sleeping (unless you get up and snack at night!) boots up the brain much like you boot up a fats, and carbohydrates for energy, not so with brain cells. Glucose from carbs is the only source of fuel that the brain can use (it cannot burn fat). Due to its rapid metabolism, the brain requires minute-to-minute glucose. Glucose levels decline more during a period of intense cognitive processing. Studies in all types of people have shown improved mental ability following a carbohydrate meal. But what type of carbs? Healthier ones, of course, Carbs that are eaten in as natural state as possible and that are relatively low on the Glycemic Index and Glycemic Load lists. Those recommended in a Longevity Lifestyle.
(Nedley, Neil, M.D. Proof Positive; Brand-Miller, Jennie, PhD, Thomas M. S. Wolever, MD, PhD, et al. The New Glucose Revolution)