Effects of Low Blood Sugar on Your Body

        Every cell in your body needs sugar (glucose) to function. When your blood sugar levels drop too low, your cells become starved for energy. Initially, that can cause minor symptoms, but if you don’t get your blood sugar levels up soon, you’re at risk of serious complications - See more at: http://www.healthline.com/health/low-blood-sugar-effects-on-body#sthash.MuueCIeY.dpuf

Caffeine and nicotine restrict blood flow to the brain.