Subscribe now

Health

Woman scanned her brain 75 times to see how birth control changes it

A neuroscientist underwent dozens of brain scans over three months to better understand the neurological effects of hormonal contraceptives

By Grace Wade

22 October 2024

Before now, no one had studied the brain before, during and after taking hormonal birth control

Shutterstock / Krakenimages

The largest brain imaging study of a woman to date shows that hormonal birth control can decrease brain volume – though it isn’t clear what effect, if any, this has on brain function.

Hormonal contraceptives have been around since the 1960s. Yet scientists only began investigating their potential effects on the brain in the past decade or two, says Carina Heller at the University of Minnesota. Previous studies have shown differences in brain volume between women who take hormonal contraceptives…

Sign up to our weekly newsletter

Receive a weekly dose of discovery in your inbox! We'll also keep you up to date with New Scientist events and special offers.

Sign up
Sponsored Links