Everyone has days when they feel completely drained. Whether it’s from a late night, a stressful week, a tough workout or just a jam-packed schedule, running on empty is a familiar feeling. However, true fatigue goes a step beyond simply wanting to hit the snooze button and go to bed early. It often shows up as a noticeable lack of physical or mental energy, trouble focusing, low motivation, or a general struggle to keep up with your regular dai…