So according to this article from the Washington Post, young people have started getting bone spurs in the back of their heads resembling horns.
The culprit? Researchers are suggesting it's phone use. We look down at our phones, shifting the weight of our head from our spine, the the muscles and tendons. Basically screwing everything up.
The prevalence of these bone spurs in young people (mostly teenagers) further backs up this theory. They've had this technology all their lives and have grown up using it. It takes a long time for this bone growth to happen. 2 and 2.