Jessica Snyder Sachs is a contributing editor to Popular Science and Parenting magazines and writes regularly for Discover, National Wildlife, and other national publications. Prior to becoming a full-time freelance writer in 1991, she managed and edited Science Digest. As an adjunct professor, Jessica teaches feature writing and writing for magazines, most recently at Fordham, Kean, and New York universities. She is a graduate of Columbia Journalism School, where she completed a mid-career masters with cross-disciplinary graduate studies in immunology, microbiology, and infectious disease. She is also the author of 2 books, Corpse and Good Germs, Bad Germs: Health and Survival in a Bacterial World.