, a professor at Bristol University says it's because our brains are 'shrinking' which is just great news.
According to Professor Bruce Hood, our brains began shrinking 20,000 years ago and now, he describes the human race as 'social animals'.
Hood says that the fact we have the urge to contact others via social media isn't surprising because "our brains have evolved for us to be social animals".
‘What’s interesting is that you might assume that the wider exposure to differing views that social media brings would make us all much more open-minded.
‘What we see in reality of course is the opposite. People seem more likely to slot into niche groups of thought online than in real life".
That's a bit harsh but we can see his point!