One in 25 bosses 'is a psychopath' but hides it with charm and business-speak

Tell us something we didn't already know.

Business leaders are four times more likely to be psychopaths than the general population, a study has found.

One out of every 25 company high-flyers is believed to have the mental disorder but disguises it through their high status, charm and manipulation in the workplace.

And only favourable environmental factors - such as having had a happy childhood - prevent their psychopathic tendencies turning them into serial killers.