Home > Videos > Joy's Most Recent Today Show Clips > What’s Hot in Health: Self-Powered Treadmills and Other Hot Health Topics What’s Hot in Health: Self-Powered Treadmills and Other Hot Health Topics by Joy Bauer, MS, RDN, CDN Sep 17, 2013 (updated Feb 21, 2016) Visit NBCNews.com for breaking news, world news, and news about the economy Joy's Most Recent Today Show Clips