 It is. So DNA damage, I agree, we wouldn't want to say that when you go to space you're assaulted with damage, but it is true that you do get radiated, and radiation can lead to DNA damage, and there's more radiation. So it's not surprising that we do see an effect of the radiation. And we see it in several ways. We see it in the blood. We see it in urine. We see it in the body's response to the radiation. The repair mechanisms in the body are activated because they can sense the damage as well.