More or Less: Behind the Stats - WS More or Less: Will one in four people develop a mental health problem?

The claim that ?one in four? of us will suffer from a mental health problem is popular amongst campaigners, politicians and the media. But this leads you to a simple question ? where is this figure from and what?s the evidence? This was exactly what neuroscientist Jamie Horder asked, and far from being simple, it led him on quite a journey. So do we really know how many people are likely to develop mental health problems ? Elizabeth Cassin and Charlotte McDonald find out.

Presenter: Charlotte McDonald Producer: Elizabeth Cassin