MRIs Show How The Brain Changes During Pregnancy

Pregnancy is a hugely transformative experience, both in how it can change someone’s day-to-day life, and how it affects the body. There’s a key part of the body that’s been under-researched in relation to pregnancy: the brain.Those who have been pregnant often talk about “pregnancy brain,” the experience of brain fog or forgetfulness during and after pregnancy. There’s also the specter of postpartum depression, a condition that affects about 1 in 7 women post-birthing. There’s still a dearth of information about what causes these cognitive, psychological, and emotional experiences.In a recent study, scientists took MRI scans of participants before, during, and after pregnancy, and spotted distinctive changes in the brain’s gray and white matter. While these anatomical changes are noticeable, the researchers are still trying to determine what they actually mean for behavior. Joining guest host Kathleen Davis to talk about this study is Dr. Liz Chrastil, associate professor of neurobiology and behavior at the University of California Irvine.Transcripts for each segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

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