There is now statistical proof that your friends are happier than you

Ever feel jealous of your friends? Worry that they're happier, more fulfilled or more successful than you? Bad news, then -- a new equation has found evidence of a 'happiness paradox', which confirms just that. 
Researchers from Indiana University, New York University and Wageningen University in the Netherlands discovered the paradox when studying the similar 'friendship paradox'. The friendship paradox states that your friends have more friends than you on social media -- a statemen