A medical examination Scrutiny following the accident diagnosed Check sleep apnea , which had hampered Hindering his ability to fully adjust Change his sleep patterns to the morning shift Change which he had begun Process_start working Employment two weeks earlier .

A medical examination Scrutiny following the accident diagnosed Check sleep apnea , which had hampered Hindering his ability to fully adjust Change his sleep patterns to the morning shift Change which he had begun Process_start working Employment two weeks earlier .

The report Reporting faulted Judgment_communication both Metro-North for not screening its employees Employment in sensitive positions Placing for sleep disorders , and the FRA for not requiring railroads do such screening .

For some days prior to his death , Hendrix had been in poor health , in part from fatigue caused Causation by overwork , a chronic lack of sleep , and an assumed influenza-related illness .

There were drivers who were forced Motion to sleep in their cars .