<qa>  What is the risk of injury due to motor vehicle crashes?Sleep disorders are common and treatable, but often remain undiagnosed and untreated. Police officers work some of the most demanding schedules known, which increases their risk of sleep disorders. The public expects officers to perform flawlessly, but unrecognized sleep disorders lead to severe disruption of sleep, which significantly reduces an individuals ability to think clearly and perform well. In addition, sleep loss and sleep disruption affect personal health, increasing the risk of gastrointestinal and cardiovascular. We also know that sleep loss increases the risk of injury due to motor vehicle crashes. 