Rachel Feltman: Have you ever really thought about the hair that grows out of your head? I mean, I’m sure you’ve thought about your hair—in terms of which way to get it cut and how to get that one ...

It’s estimated that by 2030, 40% of the world’s population will have curly hair. In recognition, researchers — led by experts at L’Oréal — are working to unravel the unique properties of curly hair, ...

Sign up for the Slatest to get the most insightful analysis, criticism, and advice out there, delivered to your inbox daily. My hair journey, like my curls, has seen ...