Dave Mustaine, who was diagnosed with throat cancer in May 2019, spoke to Full Metal Jackie‘s radio show about how his battle has affected the way he approaches his life, both on and off the stage. He said:
“Well, obviously, there’s a diet, there’s the food sources and liquids and how they affect my blood, my sugar in my blood, the dairy stuff in my blood. But I’ve never really worried too much about that ’cause I kind of have just gone out there and screamed my point across. So I think that that’s one thing that as I try and live a cleaner life because of the cancer…
“I’m cancer-free now, thank God,” he continued. “I just went and saw my radiologist and he told me October  was the month that they had said that I was cancer-free. So I’m coming up on, I think it’s three years now.
“I don’t even think about it anymore. But it was something that made me take into consideration life in general, not so much what I do when I get onstage but just how much do I really appreciate the people around me? How much do I have a capacity in my heart to tolerate people that get on my nerves? Am I gonna send somebody away mad at each other and never see ’em again?
“It’s been a real eye-opening experience,” Mustaine explained. “And I just noticed on TV, too, that they’re starting to do commercials about this type of cancer. And I’d never seen this before in my life and now I’m seeing it on TV. And I’m thinking, ‘Wow, this is crazy.’ They used to never have these kind of massive sicknesses like this where you have television commercials about throat cancer. It used to be just cancer, cancer, cancer — not into specifics like this. Now you know something really weird’s happening. And it happens to a lot of people, I’m told. So I would just encourage people to be healthy, kick ass, take down names. And if you’re an adult male and you have any respect for yourself and the people around you that love you, go get yourself checked up.”
“I’m really grateful for everybody. Even the people who have a hard time with my behavior and my big mouth, I’m just so grateful for them showing care for me. Like they say, at the end of the day, all we’ve got is each other here in this crazy metal community.”