Two Canadian students have developed a colour-changing toothpaste designed to make toothbrushing easier for children to understand. Ella Zhang and Gillian Leung, students at Havergal College in Canada ...

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 ...