"My name is Hannah Johnston, and I have a confession to make: I think blood is cool! Not just because it's fascinating under a microscope, but because it tells a story—about health, resilience, and life itself."
Earlier this year, I completed two degrees through the University of the Sunshine Coast—an Associate Degree in Medical Laboratory Science and a Bachelor of Biomedical Science with a minor in haematology. Today, I'm proud to be working as a graduate medical scientist at Hervey Bay Hospital, where I get to live out my passion every day.
But science, for me, has never been just about the lab. It's about sharing knowledge, inspiring curiosity, and giving back.
This year, I had the privilege of launching the very first Agricultural Education Hub at the best Agricultural Show in Queensland, the Gympie District Show. With the generous support of Gympie Veterinary Services, I was able to conduct live demonstrations using dairy cattle blood—showing how we can assess animal health through red and white blood cells. It was hands-on, it was messy, and it was absolutely brilliant.
I also explored the power of seaweed—yes, seaweed! Thanks to scientists from USC, we showcased three types, including Asparagopsis, which has the potential to reduce methane emissions in cattle by over 85% when added to their feed. That's science in action—solving real-world problems.
And none of this would have been possible without the incredible support of Oz-Tac Engineering, Bendigo Bank, and a team of volunteers who walked every step of the way with me. Together, we put microscopes in the hands of children and sparked a sense of wonder that I hope will stay with them for life and the first Ag Ed Hub was a huge success.
But my journey hasn't always been easy. I live with type 1 diabetes. I have an artificial heart valve and a pacemaker. These challenges are part of my story—but they don't define me. Instead, they've taught me to seize every opportunity, to live with purpose, and to serve with heart.
Whether it's performing music in aged care homes, raising over $75,000 as a showgirl entrant for the Gympie District Show Society, or being named Young Citizen of the Year in 2020 and 2022—my goal has always been the same: to give back."
In 2025, I was humbled to receive the Queensland Ag Shows award for Outstanding Individual Contribution. But the real reward is seeing young people light up when they discover something new—when they realize that science isn't just in textbooks, it's in the world around them.
So, I want to leave you with this: Whatever your passion is—science, music, agriculture, community—use it. Share it. Let it grow. Because when we give of ourselves, we don't just change lives—we build a future worth believing in.