But before you say congratulations, it wasn’t a stellar grade on a report card or end-of-year project. It’s my blood type, according to an at-home DIY blood typing kit I bought on Amazon—the Eldoncard ...

Nothing says love like the willingness to give to your partner one of your organs and/or all of your blood. And while taking out your own kidney or presenting her with a jar full of your blood might ...

Sophia Waterfield is a reporter for Newsweek based at its London bureau. She has written for publications such as Metro UK, New Scientist, and Forbes.com, and has covered topics such as business ...