Bioelectricity: The Body's Hidden Potential

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In this electrifying experience, Dr Ann Rajnicek explores the world of bioelectricity and its part in the human body. In episode one, Ann explains bioelectricity, discusses ion movement in cells and tissues, and shows how epithelia like skin acts as measurable 'batteries.' Ann then explores what happens when that battery is disrupted by injury, how scientists map and decode wound currents, and why understanding the ions involved could lead to new ways to boost healing. In episode two, Ann explores how the body’s natural electrical signals guide cells into wounds, helping them move to the right place and switch into repair-friendly roles. She then shows how boosting those signals can speed healing, why some animals regenerate limbs using injury currents, and how electrical stimulation is being combined with other treatments to improve nervous-system repair. In episode three, Ann traces the history of bioelectrical therapies, looking how early experiments led to a Frankenstein phenomenon of 'reanimating corpses'. Ann then discusses how modern electrophysiology and planarian regeneration research have reclaimed bioelectricity as real biology — and how that knowledge now powers evidence-based therapies and future technology. In the final episode, Ann recaps the science of bioelectricity before setting you an activity that asks you to conduct some research and compile your findings on what impact Parkinson’s disease has on the electric signals in the body, and how we can tackle it.