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DENVER — The subject of this “Secret’s of Success” story is a woman with a lot of passion for her work, and how it can change people’s lives.

Theresa Byrne is a 3rd degree black belt who shares her knowledge at the United Martial Arts & Fitness Center in Englewood.

She has owned the business for 11 years now, teaching self-defense and so much more.

It’s always been more than just punching and kicking to Theresa, who sees a much broader positive impact in her students. Her business actually grew during the economic downturn, something she attributes to people seeking a place with “heart” during tough times.

The bottom line is not the only line to Theresa, who revels in the growth of her youngest students. Watch the video clip above to learn more about this unique entrepreneur and her “Secrets of Success.”