Download or read book Riddled with Life written by Marlene Zuk and published by Houghton Mifflin Harcourt. This book was released on 2007 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: An evolutionary biologist explores how germs, infections, bacteria, and viruses have shaped human life, examining the role of disease while answering such questions as why men die younger than women and how parasites can sometimes make us well.