Bioelectromagnetics concerns the interaction with electromagnetic fields and waves with biological entities, from the molecular to the organismal. This seminar will provide a brief overview of this rapidly advancing field including some of the key medical applications of such technologies. Specific results concerning protein electrodynamics and terahertz medicine will also be discussed. In particular, it is well known that proteins exhibit dynamic behavior with their normal modes specifically vibrating at terahertz frequencies. These motions are essential to protein function and because these macromolecules are charged the existence of such vibrations suggest the possibility of specific interaction with electromagnetic radiation in the terahertz band.