Increased risks A person working night shift, which causes disruption to the circadian rhythm, is at greater risk of various disorders, accidents and misfortunes, including: Increased likelihood of obesity. Increased risk of cardiovascular disease. Higher risk of mood changes.

What working nights does to your body?

When youre drowsy, local parts of the brain shut down for milliseconds or seconds at a time, then come back online, he says. Night work and fatigue may also contribute to the risk of heart disease and cancer, according to research by Violanti, Vila and colleagues (Policing, Vol. 30, No. 2).

Is working night shift bad?

“Shift work, particularly night shifts, disrupts social and biological rhythms, as well as sleep, and has been suggested to increase the risk of metabolic disorders, including Type 2 diabetes,” says report co-author Celine Vetter, who is the Director of the Circadian and Sleep Epidemiology at Colorado University.