People like Michelle Knowlden

Unwind is a 2007 dystopian novel by young adult literature author Neal Shusterman. It takes place in the United States in the near future. After the Second Civil War, which was labeled "The Heartland War", was fought over abortion, a compromise was reached, allowing parents to sign an order for their children between the ages of 13 and 18 to be "unwound" — taken to "harvest camps" and dissected into their body parts for later use. The reasoning is that, since 99.44% of the body is used, unwinds do not technically die because their individual body parts live on.