Even those. Of course, the amount of effort differs greatly depending on the sort of memory and how deeply it's buried. The sort of memory as well.

[ He taps a finger to the inside of his left wrist, which, if Natsume were to glance over at it, the sleeve is pulled back enough during that motion to show bare, unmarked skin. ]

...compared to what you had for breakfast two Mondays ago, for example.