Stefan Falk

We’re all selfish to some degree. Psychology researcher Stefan Falk shares the toxic traits of highly selfish and entitled people who are most harmful to others — and how to deal with them.

Introverts are incredibly successful in how they communicate, says psychology expert Stefan Falk, who has spent 30 years coaching CEOs. He shares the top phrases introverts use that set them apart from extroverts.

Psychology expert Stefan Falk has spent 30 years studying what separates highly successful people apart from everyone else. There's one skill in particular that, if parents teach their kids early on in childhood, he says can help them excel at "pretty much everything." And even Steve Jobs agreed.