Trying Tourette's device was the best day of my life

The now 15-year-old says living with Tourette's , external affected her ability to sleep, eat, and caused her to miss school. Katie recalled trying it on for the first time, and said: "It was absolutely life-changing.

It was like the best day of my life." She said: "It was constantly moving, constantly making sounds and then I was kind of getting looked at like, 'why are you doing that?' "I used to make snorting sounds, but it was constant all the time, so I'd give myself a really bad sore throat and then be in bed for two weeks. It was not until she read about a wrist device - developed by the University of Nottingham - that Julia felt hopeful for her daughter.

She and Katie learned more about the device, and came to Nottingham to try it in December before it was available to buy. It works by delivering electrical pulses to the median nerve at the wrist, which trials have shown can change the activity in the parts of the brain involved in movement control.