Geoffrey Guy and Alastair Nunn, leading researchers in quantum biology and co-founders of the Guy Foundation, dive deep into the intriguing connections between health and space. They discuss the effects of magnetic fields on metabolism and chronic disease, shedding light on the health implications for astronauts. The duo also explores mitochondrial function, radiation interactions, and the benefits of UV light for cellular health. Their insights on light exposure's effects in space further stress the need for research on human health during space travel.