After back-to-back hospital visits for congestive heart failure, Eva Olweean figured her health was back to normal. But the nurses at her retirement home knew better: Motion sensors in the 86-year-old’s bed detected too many restless nights. Tiny sensors hover unobtrusively over the toilet, shower and doorways to detect Olweean’s movements inside her apartment. Pneumatic tubes tucked in the mattress and beneath her easy chair measure weight shifts. Caregivers and researchers at the University of Missouri-Columbia study the data.
