I Swear: The film fighting back against abuse and 'cheap laughs' at Tourette's expenseWhen John Davidson was 10 years old, he experienced his first symptoms of Tourette syndrome - small facial tics and eye blinking.
Source: I Swear: The film fighting back against abuse and 'cheap laughs' at Tourette's expense (https://news.sky.com/story/i-swear-the-film-fighting-back-against-abuse-and-cheap-laughs-at-tourettes-expense-13446397)