How it works: You hold on for a few seconds while it sends weak electrical currents into your body (you won't feel anything). (health.com)
No mechanical moving parts would be required — only weak electrical currents, which saves energy. (sciencedaily.com)
New research from an international group led by Min Zhao, professor of ophthalmology and of dermatology at the University of California, Davis, shows that, in animal models of diabetes, slow healing is associated with weaker electrical currents in wounds. (sciencedaily.com)