One-third of all fatal accidents have something to do with a driver not getting a enough sleep, making drowsy driving one of the top killers on the highway.“The brain has got to sleep,” said Dr. Thomas Phelps of Harton Regional Medical Center’s Sleep Center during his talk to McMinnville’s Noon Exchange Club. “It has to recharge itself to work correctly.”Phelps said a major concern of his work with the Sleep Center is public safety when it comes to fatigued drivers. Research has shown, Phelps revealed, that staying awake continuously past 16 hours can cause reaction times to be the same as a person who has a .05 to .10 blood-alcohol level.