We’ve all heard of the myriad ways that our addiction to smartphones can have negative effects; from ruining interpersonal relationships to causing sleep loss to changing the way our brains function. Well, here’s another: researchers have found that “extensive screen time” can lead to people growing horn-like structures on their skulls. The study of 400 people found increased presence of bone spurs on the base of the skulls of those examined. Bone spurs “often form from repetitive motions. One type of repetitive motion is tilting the head forward, perhaps to look at a smartphone,” notes CNBC. Just another example of how tech is transforming our lives in a multitude of ways.