It also confirms the handheld's single account lock-down, noting that even your console's memory card is tied to your PSN account -- it simply won't work on your friend's Vita.
If you have a lot of scarring and fibrosis, the face doesn't work like it should - the eyelids can't close, the nose won't work, and the mouth won't work.
If that doesn't work--and it won't for many people--try an ancient HDL-raiser, the B vitamin niacin, if you can live with its annoying side effect (hot flashes).