Fortunately, sleep apnea is a condition that can be treated. However, there are still a lot of sleep apnea patients who have not yet received treatment. A physician can diagnose sleep apnea with an in-lab study or a home sleep apnea test. Regular exercise and a simple change in lifestyle can both help in preventing it from happening. Hopefully, with screenings and examinations conducted on railroad employees, it will be possible to avoid accidents due to falling asleep because of sleep apnea.