Peter Attia· MD
if cells stop doing that there's a branch of the immune system stop stop presenting antigens at all um other antigens a new word I meant to introduce that antigen means a difference like a protein fragment that's being presented and seen as different we call that an antigen and it can come into these different categories that I'm talking about so basically if a cell if a cancer cell we're trying to hide itself if you will by not expressing um these receptors to present antigens then there's actually a branched immune system that's basically you know natural killer cells as they're called they're very primordial immune cells they're supposed to just you know swoop in and and kill those cells and we have evidence that that does occur