Why Am I Always Tired Reviews & Book PDF Download. Did you know before the industrial revolution, people never slept in single 8 hour blocks every night? Medical texts before the industrial revolution often refer to ‘first sleep’ and ‘second sleep’. People slept multiple times in a 24 hour period and never for 8 full hours like is recommended by so-called professionals today. Did you know snoring and sleep apnea is often caused by eating certain types of grains? There are certain foods that when eaten at the wrong times will cause gas to build in your body and back up through your esophagus at night. This gas causes a chocking feeling, and will wake you up in the middle of the night when you should be getting the deepest sleep.