Jeff Tesselaar

ambassador Jeff Tesselaar Jeff Tesselaar has been an ambassador for the Del Ferro Institute since 2025. “I want to share my story so that others don’t have to go through the same thing. I was once told that I would never get rid of it. That I had to learn to live with stuttering. But […]

Annick Melgers

breathing specialist Annick Melgers At the beginning of her tennis career, Annick often suffered from hyperventilation. She found the solution in Del Ferro’s breathing training, which not only helped her overcome her own problems but also inspired her to join the institute. She got trained as a breathing specialist with Del Ferro. With her perseverance […]

Ingrid Del Ferro

director, stuttering & breathing specialist Ingrid Del Ferro Ingrid Del Ferro is a leading stuttering and breathing specialist, known for her pioneering breathing technique that is at the heart of the Del Ferro method. Together with her team, she helps hundreds of people worldwide every year to permanently resolve stuttering, hyperventilation, burn-out symptoms, lung covid […]