There is a reason that breakfast is considered the most important meal of the day. Skipping it can result in low blood sugar levels, and that is very damaging to the brain, especially if it happens a lot. Your brain uses more energy than any other organ in the body, and takes up to 20% of the total available glucose in your system each day.
About 2/3 of the brain’s “energy budget” is used to help neurons fire off signals to the rest of the body. The remaining 1/3 is designated for cellular maintenance and care. Regularly denying your brain enough nourishment causes a deficit in that energy budget, and you’ll find that your brain becomes less responsive to stimuli. Unbeknownst to you, your brain cells will also miss the critical care they need to be healthy, and will die at an accelerated rate.