The goal of brushing one’s teeth is to have fresh breath and prevent cavities. But the effect of toothpaste on the complex ecosystem of bacteria in our mouths — the oral microbiome — is often ...

Last year, I took on one of the weirder TikTok challenges—catching an orange covered in toothpaste with my mouth! Watching this again, I can't believe the kinds of crazy stunts we tried just for fun ...