The Extra Pounds You Can't Afford to Lose: An Interview With Microbiologist Margaret McFall-Ngai
Recent revelations about our microscopic partners and tenants are numerically startling, if not downright existential. Try these for starters: Most of the cells within your body are not human cells, and you are literally teeming with pounds of busy microbes.
Brandon Brown, Contributor
Professor of Physics and Astronomy, University of San Francisco