Noggin by John Corey Whaley

When an aggressive cancer stole Travis' life before he even got his driver's license, it should have been a shame and a tragedy. Instead, it became one of medical science's biggest breakthroughs when they reattached Travis' head to another teen's healthy body (after that guy lost his battle to brain cancer). But who would have thought that reattaching and reanimating a severed head would turn out to be the easy part of Travis' reincarnation?

For Travis, it seems like he took an afternoon nap; no time passed while he was inanimate. But while he was gone the world kept turning: the reality is, everybody else moved on. And the five years from age 16 to 21 meant lots of life-altering changes for his friends (and girlfriend) - they're not in the same place anymore.

I loved this book, and it's not as far removed from reality as you might expect for a sci-fi story. Because every teen is going through changes (and at their own pace), most of us have experiences where you get left behind despite the best intentions.

There's a great cast of characters here - old friends, new friends, parents, and the one other guy who was reanimated. They've each got their own struggles that help or hinder Travis' tale. In all, a great book about an unusually common experience.