Working long hours can greatly increase the risk of suffering injury or illness, a study says.
Workers who do overtime were 61% more likely to become hurt or ill, once factors such as age and gender were taken into account.
And working more than 12 hours a day raised the risk by more than a third, the University of Massachusetts found.
A 60-hour week carried a 23% greater risk, the study of US records from 110,236 employment periods found.