Study: Less Than Half of Human Body Is Human

New discoveries are making scientists rethink what makes us human, and even why we get sick and how to stay healthy. Research estimates that we're only about 43% human. The rest are microorganisms that affect health, mood and how you respond to medication. VOA's Elizabeth Lee visited a lab at the University of California San Diego for a peek at research about the bugs that live in all of us.

© La Voix de l'Amérique - dimanche 26 mai 2019