Working for nine plus hours a day could put women at higher risk of depression, but not men, finds a study.
Women who worked extra long hours, more than 55 hours a week, had 7.3 per cent more depressive symptoms than women working a standard 35-40 hours a week.
However, the same was not the case in men, the study found.
"This is an observational study. Although we cannot establish the exact causes, we do know many women face the additional burden of doing a larger share of domestic labour than men, leading to extensive total work hours, added time pressures and overwhelming responsibilities," said lead researcher Gill Weston, postdoctoral student at the University College London.
"Additionally, women who work most weekends tend to be concentrated in low-paid service sector jobs, which have been linked to higher levels of depression," Weston said.