The BBC Reports: Pregnant women exposed to organic solvents at work have a slightly higher chance of having a baby with a heart defect, a study shows.

The risk applied to hairdressers, nail bar workers plus women working in factories that make these chemicals, US researchers found.

But experts say the real risk in absolute terms is still very small.

Another study in the same Occupational and Environmental Medicine journal shows a dad's job also has an impact.

For men, working as a photographer, a gardener or landscaper or a gas worker, among other occupations, appears to increase the odds of various birth abnormalities, according to the study of nearly 5,000 fathers.

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