[ That's what Logan's honing in on? Not on his cool Skyfall commentary? Stiles twists his mouth to the side like he really would've liked to rank all his favorite Bond films, but fine, whatever. ]

Uh, it's called...

[ There's a bit of a rasp to his voice now, like it's difficult to get this out, but he's not-- upset, he's just kind of dealing with a lump in his throat while he puts this into words for someone other than Scott. He scratches his eyebrow with his thumb while he talks, keeping casual. ]

Uh - frontotemporal dementia. Same thing that killed my mom. It's the only kind of dementia that can hit teenagers. Your brain, uh...

[ Stiles frowns, dropping his hands, leg starting to bounce. He was gonna go into detail, really break down the symptoms and the science of what he's going through, but he's not sure that would comfort Logan the way he can trick himself into pretending it comforts him. Stiles just kinda gestures with his hands, bringing them together - indicating shrinking. ]

I was getting an MRI when they got me here. Brain's already started to atrophy, so. I kinda struggle with reading, sleeping, retaining information, things like that. Still early days, but I figure it's something he's gotta know about.