Debra Skene, Professor of Neuroendocrinology, discusses the effects of light, melatonin, naps, physical activity, and nutrition on shift workers' wellbeing. They delve into the role of light exposure in our internal clocks, the impact of melatonin on circadian systems, and the benefits of time-restricted eating. The podcast also reflects on the influential work of Josephina Ren in chronobiology.