I am looking for a teen science fiction title published in the late 1970s or early 1980s. I believe that there was a society that has found a way to prolong life for hundreds of years. Individuals store their memories in crystals that reside in a wig. When a character wants to live in the moment, they can remove their wig and be free of other memories. Sorry-no title or author.
Does anyone know what this is?