I’m an Epidemiologist. Well, I’m learning how to be one – I’m currently doing my PhD.
Contrary to popular belief, that doesn’t mean I’m a skin doctor. Epidemiology is a broad field that encompasses methods and techniques used to address issues that affect populations. Or, put more eloquently “Epidemiology is the study of the distribution and determinants of disease, and disease related states, in a population of individuals.”
In short – Epidemiologists study who is getting sick, what is making them sick, and how sick they are getting. You can replace “sick” with any health outcome there, and there’s an epidemiologist looking at it. We do other stuff too, but that’s a story for another day.