 Um, so, so, so yeah, it, it is this idea of, of, of both like long-term repeated exposures at low doses, what that means for your body. And like I said, you know, sometimes it is even these small exposures in these important stages of life. Um, if people, if people, um, think about, you know, I think PFAS, these perfluorinated, excuse me, these chemicals, um,