Why Shift Work Makes Fat Loss Harder Shift workers have 30–40% higher rates of obesity than day workers. This is not purely a lifestyle choice β€” shift work creates specific biological disadvantages that standard fat loss advice does not address. Understanding them is the first step to working around them. Circadian misalignment: Your body has independent clocks in every organ, synchronised by light-dark cycles and meal timing. Night shift disrupts this synchronisation β€” the master clock (set by light) says night while peripheral clocks (set by meal timing) are confused. Metabolic ineffic…