Working in shifts as we know it in the modern day originated at the start of the industrial revolution to keep up with maintaining and managing the factories. Since then, shift work has permeated all ...

The Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text-Revision, defines circadian rhythm sleep disorder (CRSD) of the shift work type as, “insomnia during the major sleep ...

Many more people work very early morning shifts than overnight ones, and a large proportion struggle with excessive sleepiness from shift work disorder, leading to problems with focus, performance and ...