Our IQs have never been higher – but it hasn’t made us smart

We tend to assume that our intelligence is simply a matter of nature and nurture – but as the celebrated psychologist James Flynn explains, many other factors can stunt or boost your IQ, right down to the person you choose to marry.
Read more: http://www.bbc.com/future/story/20160929-our-iqs-have-never-been-higher-but-it-hasnt-made-us-smart?source=Snapzu