The Cavinder Twins show that they have fitness in their blood — as they introduce Mom in this revealing TikTok video.

Learn the origin of the term Irish Twins and why these special back-to-back siblings are both a blessing and a challenge.

Still, these results do not bode well for all the identical twins out there, to say nothing of triplets and quintuplets. This is, by the way, a test Microsoft says its Windows Hello Facial ...