We’re a chronically sleep-deprived society, thanks to the demands of our jobs and personal life. We’re extending our waking hours, exchanging our sleep for other activities. We try to convince ourselves that “it’s ok, I don’t need to sleep as much.” But when we do this day-after-day, and night-after-night, we end up with a “sleep debt,” and we’re fatigued. “Fatigue is a state that results from sleep loss, continuous hours of wakefulness, disruptions of your body clock, and workload, that affects you both mentally and physically,” says Dr. Melissa Mallis, of M3 Alertness Management.