Joining me today is Sally Edgar from a London-based digital agency AV Studios. They've worked with numerous clients in the education and public health sectors over the course of 20 years, creating animations, designing websites and launching quizzes.

I'm keen to know what makes a public health animation effective and, as the NHS introduces an online quiz to determine heart age, will such quizzes have a greater role in public health?

This is Five Minutes with Sally Edgar.