An Australian study has found “Baby brain” is in fact a real issue.

Researchers at Deakin University undertook a meta-analysis of 20 studies involving more than 1,200 women.

They found overall cognitive functioning was poorer in pregnant women than in non-pregnant women, reports ABC news.

“General cognitive functioning, memory, and executive functioning were significantly reduced during the third trimester of pregnancy, but not during the first two trimesters,” the authors wrote.

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The study, published in the Medical Journal of Australia, found changes to cognitive functioning and memory occurred early in pregnancy, but did not become apparent until the third trimester.

“The declines start to happen between the first and the second trimester, and then look like they stabilise … but are most obvious in the third trimester,” senior author Associate Professor Linda Byrne said.

“‘Baby brain’ is most likely to be noticed by mothers-to-be and those closest to them, with women remaining within normal ranges of memory and cognitive function.”

About four out of five women report experiencing cognitive changes during pregnancy.

Symptoms include forgetfulness, poor concentration and feeling they are “not as sharp” as normal.

“It’s certainly a valid thing that women experience and report, and we know objectively now that there are these changes that occur,” Associate Professor Byrne said.

Did you suffer baby brain?

Share your comments below.

  • Can’t say I noticed any difference in my brain function when pregnant or not pregnant


  • I have to agree with you. Between about 2 1/2 abd 3 1/2 they develop a very strong imagination. Mainly scary things. You may find them wandering into your bedroom crying. It’s known by medicos as night terrors. You will probably take a little while to resettle then as it’s the same as nightmares we sometimes have that can distress us. To them the content is definitely real. When they get older they will be able to tell you what is was about if they remember in the morning. I have had one of mine laughing in his sleep. I heard him and got up to check him. I wondered it he was getting into mischief. Next morning he told us he had a funny dream.


  • Now if only someone could prove toddler brain too


  • Of course it is, we woman could have told them that years ago haha


  • Yeah, I remember a bit of a baby brain in the last trimester. But I didn’t sleep so well (idem for the period after birth), so that certainly impacts your focus and ability to concentrate.


  • I suffered from this a little while pregnant but it worse after my daughter was born. I was so foggy for a while there.


  • sure did but my brain didn’t get better after my last


  • I dont recall having baby brain. This study is the result of info from 20 different studies so I guess it may exist


  • I did encounter a little bit of “baby brain”.


  • Absolutely! But I blame it more on getting zero quality sleep rather than just because I was pregnant.


  • I don’t remember suffering baby brain. Very interesting study!!


  • Yep! Sure did – baby brain from the beginning till the end. :)


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