#1 - Lack of nutrients (especially Iron). This is the biggest reason for fatigue in my opinion. Many foods in stores today are full of empty calories. Even people who consider themselves eating healthy consume approximately 50% of empty calories with their daily meals. "Empty calories" means that this food has no nutrients or have close to zero nutrients. #2 - Not enough sleep. Before electricity was developed people slept about 9 hours each night. Today, with TVs, computers,