Choosing a specific division of electrical engineering

I'm an electrical engineering graduate who is starting a career as a lecturer in a university. But I am in big trouble to choose my research field as I have to do higher study in future. I have interest in power side. But I am feared to think that power side is going to be narrower day by day. As well as funding is not available.On the other hand I am finding bio-medical side much promising and motivated to work on this field. Am I moving in a wrong track? Please give me some direction.
posted by Mhj, Jessore on June 4, 2014