ADHD Burnout: Why So Many Adults Feel Completely Exhausted (And What Can Help) If you've searched for "What is ADHD burnout?" or "Why am I so exhausted with ADHD?", you're far from alone. Many adults with ADHD describe reaching a point where they simply can't keep going. Not because they lack motivation. Not because they're lazy. But because their nervous system has been working overtime for months—or...