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We’ve all heard the cliché – that pregnancy makes women somehow more forgetful and less capable. But scientists behind the world’s largest study scanning pregnant women’s brains say it’s time to rethink the trope.

They’ve found that women’s brains change profoundly during pregnancy, with grey matter volume decreasing significantly.

But a leading neuroscientist in the field tells us this reduction isn't necessarily a bad thing, in fact the evidence suggests the changes are for good.

We go inside the latest science and talk to leading researchers, as well as mothers, to ask the question – what’s really going on?