How to understand Health Risk Messages and be ready for Decision-Making about our health. Lisa Sparks, Ph.D., is passionate about understanding and creating accurate health care messages that promote a healthier population. Whether working with the entertainment industry to assure that television and movie scripts are accurate when depicting diseases and conditions, or conducting research, Lisa is committed to improving health through better communication. About TEDx. TEDx was created in the spirit of TED's mission, "ideas worth spreading." The program is designed to give communities, organizations and individuals the opportunity to stimulate dialogue through TED-like experiences at the local level. At TEDx events, a screening of TEDTalks videos -- or a combination of live presenters and TEDTalks videos -- sparks deep conversation and connections. TEDx events are fully planned and coordinated independently, on a community-by-community basis.