Singer Halsey has revealed that her ongoing battle with an unspecified illness is the ‘biggest challenge’ of her life. In an interview with Zane Lowe on Apple Music 1, she discussed her health struggles and how they have affected her career. ‘I’ve been very sick for a long time, and it’s been the biggest challenge of my life,’ she said. ‘I’ve had to cancel shows and stuff, and it’s been really, really hard.’ Halsey also spoke about the importance of being open about her health issues, saying, ‘I think it’s important to talk about it because other people have it too.’