Dani Clode modeling her prosthetic third thumb. The thumb is 3-D printed extension of the hand that is controlled by the wearer's toes. Dani Clode Design/daniclode.com hide caption
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Patients line up for remote health consultation sessions on a char near Rangpur, Bangladesh. Allison Joyce for NPR hide caption
A Harvard research team's prototype of a portable exosuit is made of cloth components worn at the waist and thighs. A computer that's built into the shorts uses an algorithm that can sense when the user shifts between a walking gait and a running gait. Wyss Institute at Harvard University hide caption
These Experimental Shorts Are An 'Exosuit' That Boosts Endurance On The Trail
Jessica Holloway-Haytcher uses an app that helps her track meals, exercise and keep in touch with an online coach. Mark Rogers Photography hide caption
Researchers had participants wear the fitness trackers while walking or running on a treadmill and while riding an exercise bike to determine how well the trackers measured heart rate and energy expenditure. Paul Sakuma/Courtesy of Stanford University School of Medicine hide caption
Fitness Trackers: Good at Measuring Heart Rate, Not So Good At Measuring Calories
They're so cute. So colorful. But are they really making you fitter? Paul Marotta/Getty Images for Fitbit hide caption
The Text4Baby app sends free, periodic text messages in Spanish or English to pregnant women and new moms about prenatal care, labor and delivery, breastfeeding, developmental milestones and immunizations. Kristin Adair/NPR hide caption
Dartmouth College researcher Timothy Pierson holds a prototype of Wanda, which is designed to establish secure wireless connections between devices that generate data. Eli Burakian/Dartmouth College hide caption
Amanda Angelotti (left) and Connie Chen, both graduates of University of California, San Francisco's medical school, opted for careers in digital health. Josh Cassidy/KQED hide caption
Arturo Martinez watches his wife, Aurora Martinez, put on makeup in their San Rafael, Calif., home. She has Alzheimer's. Lynne Shallcross for NPR hide caption