In this episode of Walk the Valley, Kata sits down with Sarah Morgan, industrial designer turned healthtech entrepreneur and founder of NanoLit Technologies. Unlike many healthtech founders who come from medical or technical backgrounds, Sarah applies design thinking to healthcare, using light to support recovery, sleep health, and quality of life in hospitals and senior care.Sarah takes us on a journey from the quantum physics of light to the practical barriers of healthcare supply chains, showing how even simple interventions like better lighting can profoundly impact patient outcomes, dementia care, and recovery environments. Along the way, she explains how design thinking - empathising with users, defining problems, prototyping, and iterating - can unlock innovation in one of the hardest industries to change.Her insights connect with the findings of the recently published Health Pays Back report from the International WELL Building Institute, which underscores the economic and health benefits of healthier environments.Whether you’re a founder, clinician, or innovator, this episode is a reminder that real healthcare impact comes from looking beyond technology, digging deep into the system, and designing solutions that people can truly adopt.