The Houston Chronicle asks: When does simply being tired turn into something more serious?

“Fatigue is something you can’t overcome,” said Kelsey-Seybold internal medicine physician Dr. Steffanie Campbell. “If you’re tired one day because you had a bad night of sleep or you had to get up early for something, you can still function through your day. You feel tired, but it’s not debilitating. Fatigue is debilitating. It prevents you from doing normal activities. You can’t go to work, you aren’t cleaning your home, you’re not going out, sometimes you’re not bathing. It definitely interferes with your life.”