According to science, you need 3 positive thoughts or experiences to make up for 1 negative one. This is called “negative bias.” Facebook and other social media sites are often one of the biggest contributors to your negativity bias. It’s a fact.

According to one neuroscientist, these sites can wreck your attention span, mess up your identity, and leave you with the inability to empathise.

Source: Facebook and Social Media Fuel Negativity – Your Positivity Coach