One in two people are ageist, according to the World Health Organization. Ed Butler looks at the scale of the perceived problem, hearing from workers and experts.

In the UK and US, for instance, more than a quarter of over-50s report experiences of ageism in the last 12 months. One recent global survey found that it’s the most socially accepted prejudice, more widespread than either racism or sexism.

And how much is ageism a factor in this year’s US presidential race?

(Picture: Timothy Tan working alongside a colleague at a computer)

Presenter: Ed Butler Producer: Amber Mehmood