StuffThatWorks applies machine learning and the power of crowdsourcing to empower people with chronic conditions to transform their experience into an organized knowledge database aimed at figuring out which treatments work best. The more contributors, the more personalized the insights become. With over 1.2M members across 400+ conditions, StuffThatWorks is the largest and most up-to-date PRO (patient reported outcome) knowledge base optimized for research. Founded by Yael Elish and Yossi Synett, StuffThatWorks is based in Tel Aviv.