I was 22 years old. But I'm still here. And one reason I'm...

I was 22 years old. But I'm still here. And one reason I'm still here is that I've got lots of ionizing radiation. That's what's good for you, for your immune system. There have been a lot of studies that show that a low level of it is good for you. The problem is they don't know what the level should be.