'Baby brain' is no joke - it does exist, study finds

"Expectant mothers lost an average of nearly five per cent of their grey matter, the tissue responsible for processing emotions, information, and empathy. This loss isn't a sign of decline as Lead researcher Professor Susana Carmona of the Gregorio Marañón Health Research Institute likened it to pruning a tree. 'Some branches are cut to make it grow more efficiently,' she explained."

"For years, 'baby brain' has been synonymous with 'brain fog' or intellectual lapses. However, this research suggests the brain isn't becoming 'dumber', it's becoming specialised. Rather than becoming dumber, we are becoming more specialised for the job."

"The team, co-led by Professor Oscar Vilarroya, compared the pregnant participants against a control group of 52 women who had never been pregnant. While the control group's brain structures remained steady, the pregnant women showed clear, consistent neural remodelling driven by hormonal shifts."

A landmark study published in Nature Communications tracked 127 women through pregnancy using MRI scans and hormone tests, revealing that expectant mothers experience substantial brain rewiring. Mothers lost an average of nearly five percent of grey matter, the tissue responsible for processing emotions, information, and empathy. This transformation is not a sign of decline but rather a specialization process, comparable to pruning a tree to promote efficient growth. The grey matter partially returned within six months after birth. The research challenges the long-held notion of 'baby brain' as intellectual decline, instead demonstrating that the brain becomes specialized for maternal instincts and parenting demands. A control group of non-pregnant women showed no such neural changes, confirming that hormonal shifts drive this remodeling.

Read at Mail Online