Increased Sleep Irregularity Is Related to Self-Diagnosis of Mental Illness: Implications for Shift Work

Sleep irregularities are associated with almost all mental illnesses. We examine the hypothesis that sleep irregularity is associated with increased self-diagnosis of mental illness. Bedtime/Waketime varying more than 3 hours, more than 5 times a week increased self-diagnosis compared with never varying.  There are important implications for shift workers.