Mums who return to work before their kids turn three may be doing them a favour.
Experts have suggested that such children are no more likely to have academic or behavioural problems than those whose mothers stay at home and may even perform better in school, reports the Daily Express.
Rachel Lucas-Thompson, who led the study at the University of California in the US, said: "Women who go back to work soon after they have children should not be too concerned about their well-being.
"For years, there has been a lot of debate and now we can see for which families there are positive associations having a working mum," she said.
Children in poorer families benefited as the extra income reduced stress and offered more opportunities, while their mothers became better role models.
The findings appeared online in Psychological Bulletin.