Alanna Collen

About the Author

Alanna Collen is a British biologist, writer, and broadcaster whose work bridges the worlds of science and storytelling to illuminate the profound influence of the microbiome on human health and behavior. With a PhD in evolutionary biology from the University of Cambridge, she has dedicated her career to exploring how the microscopic communities within and around us shape our lives, challenging conventional notions of what it means to be human. Drawing from years of research and fieldwork, Collen crafts accessible narratives that demystify complex scientific concepts, making them engaging for a wide audience. Her debut book, '10% HUMAN- PB', became a bestseller, earning praise for its witty insights into the microbial majority that dominates our bodies. Through her writing, podcasts, and public speaking, Collen advocates for a holistic understanding of health, urging readers to reconsider their relationship with the unseen forces driving our biology.