Seward Rutkove explains how a technique called electrical impedance myography (EIM) can be used to measure the health of muscles. He demonstrates a handheld device that can now perform EIM measurements much more quickly than before.
Courtney HumphriesI’m a contributing editor for MIT Technology Review and a freelance writer covering biology, health, and culture for a variety of publications, including the Boston Globe, Science, Nature, Wired, and New Scientist. I’m the author of Superdove: How the Pigeon Took Manhattan … And the World, by Smithsonian Books. I live in Boston.