Okay. Then he'll be speaking a bit for Alzheimer's, after all, it was the one he'd mentioned.

And the girl didn't comment on the reading part? Perhaps she only heard it and Treyen only assumed that wizards were bound to know of it just by reading the Quibbler.

But listening to what others were saying, he decided on adding a bit more, "In Alzheimer's case, there is some sort of treatment, but the medicine isn't meant to cure the disease, it's meant to slow its progression...and it doesn't work for everyone." Oh, yes, he knew a thing or two, that was the plus side of staying in Hogwarts over the Holidays. Lots of books read. "So, while the cell-damage is being slower, it can never be reversed," they've covered that, right? "It's true that everyone's brain gets tired at the end of the road...," beautiful way to say 'when we get old', ha, "...but I don't suppose Muggles have a Pensieve that helps them around."

Treyen didn't have one either.

"Either way, there isn't any magical way to cure it either." His eyes were on the little Slytherin girl now, for she'd said something important, about memory potions, of course. "I do believe Potions have a stronger effect than charms or spells," mostly because you could even use a spell while making one, "And longer effects too," which was more than useful, "If we can get the brain cells to...like...be connected again, then, yeah, that could work. Either that, or causing the opposite reaction to Obliviation. The brain reaction, of course, not the result per say." Amazing that it happened to be a Lockhart the one proposing it.