I'm trying to find the title of a budget science fiction book I read in about 1985. The main theme of the book is a guy is somehow abducted by an alien ship, his body dismatled cell by cell, then put back together again - but the reconstructed body is so much better than the original. He is faster, stronger, more attractive, smarter - better in everyway, the perfect human.
I'm guessing the book wasn't a best seller, but the concept has stuck with me over the years and I wouldn't mind reading it again.