I acted in high school and auditioned in university. I was a telemarketer for a short period, but then realized that I had a soul. All my jobs required me to be clear and, at times, eloquent in my speech (presentations, teaching, formal readings for students, etc...)
In university I studied English and linguistics. I was a teacher for two years in Japan instructing primarily in grammar and pronunciation, but often in conversational speech.
Acting taught me voice projection and clarity while still remaining in charactor.
I am familiar with medical terminology and have a large vocabulary in general (lending my voice to readings, audio textbooks, etc). As mentioned above, I was a teacher in the past, as well as a stand-up comic, and amature actor.