The Last of Us, the HBO series based on the beloved video game, is often gruelling to watch. Imagine what it's like filming it. "I would get to points where I'm bored of being dark and sad and deep all day.

Since taking on a role in HBO's 'The Last Of Us,' Bella Ramsey has skyrocketed to fame across the UK and globally. But during this career high, they've also been silently battling with a challenging health issue.