CDC says 40 million of us are dangerously tired at work

The jolly folks behind the Center for Disease Control and Prevention's Morbidity and Mortality Weekly Report have some bad news for us. About 30 percent of our nation's workforce -- more than 40 million workers -- are getting fewer than six hours of sleep a night, and it's doing us all kinds of harm: upping our chances of obesity, car accidents and work-related illness. Fifty percent of pilots and 44 percent of truck drivers surveyed for one study worryingly reported rarely getting a good night's sleep, and we're guessing about 20 percent of you conked out during that last sentence. So how do you know if you're one of our nation's sleep-starved zombies? Sleep expert Dr. Breus says if you hit the snooze button more than twice, you're probably sleep-deprived.