http://www.newsweek.com/how-tell-someone-lying-body-language-experts-chase-hughes-mark-bowden-1710316

If you suspect your partner is cheating or your boss is being less than 100 percent honest, but you just don't know for sure, it can cause tremendous stress and unhappiness.

Studies have shown that humans are bad at spotting lies, despite valuing authenticity in everything from the brands we buy to the celebrities we follow on social media.