What causes stammering? Why do more men than women stammer? How come I stammer more in some situations than others? What's the best type of therapy? Why don't people stammer when they sing?
These are just a few questions which have been perplexing researchers. We know a lot more than we did, but stammering is complicated and the need for research is on-going.
You can get involved in research: attend our Research Arena or take part in a stammering study below.
Are you a researcher looking for people to take part in a study? See our Studies Looking For Participants page.