Workplace fatigue isn’t just being physically tired—it’s being mentally exhausted. Not only are your energy levels low but so is your motivation. When we’re fatigued like this, it can make it difficult to concentrate and stay organized. And when it lasts for days or weeks, despite adequate sleep, it can leave you feeling anxious, depressed, and on the road to burnout. Anyone can feel tired at work. It’s when those feelings of tiredness persist that you need to take action.