This article was originally featured on Knowable Magazine. Roughly 20 years ago, a biologist named Caroline Gargett went in search of some remarkable cells in tissue that had been removed during ...

When you think of getting tested for a disease, you might think first of nasal swabs, urine tests, blood draws. Even though around 1.8 billion people across the world menstruate, period blood doesn’t ...

OK, we're going to take a few minutes now to talk about periods, as in the menstrual kind. Every month, hundreds of millions of people have their periods. It's blood that literally ends up in the ...