Check the statement.
In an interview with The Drummer's Journal, Iron Maiden Nicko McBrain spoke about how Bruce Dickinson's battle with cancer helped him get sober. Check out McBrain's statement:
“We recorded the album [The Book Of Souls] with Bruce knowing something was wrong. But it wasn't until the end of the recordings that he went to the doctor. When the news came that he had cancer, I was worried about my friend. And it also made me think about my own situation, my own health. When he got the news that he was cancer-free, I looked at Bruce and thought, 'He's my friend, he went through a very difficult phase, he fought and beat cancer, and none of it was his fault.' And there I was, putting myself through a difficult phase too, but I was doing it to myself, with alcohol. Then I knew I needed to stop. I needed a lot of inspiration from Bruce. He made me realize how stupid I was being.”