Thomas Gallagher, the engineer of the New Jersey Transit train that crashed into Hoboken Terminal in September, killing one and injuring hundreds, has just a received a diagnosis of severe sleep apnea. The results were sent on October 31 to federal officials according to his lawyer, Jack Arseneault. Sleep Apnea is a “common disorder in which you have one or more pauses in breathing or shallow breaths while you sleep. Breathing pauses can last from a few seconds to minutes. They may occur 30 times or more an hour.” It disrupts sleep and leaves the suffer tired the next day. It cannot be detected by a regular doctor’s visit or a blood test and many times goes undiagnosed. The National Transportation Safety Board, investigating the accident, has not yet determined the cause.