Work and Health

Everyday tasks like lifting, carrying, or sitting at a desk cause nearly half of all work-related ill health in the UK, and this programme aims to find out why some people develop chronic pain from these activities while others do not. The MRC Lifecourse Epidemiology Unit is using large-scale population studies to trace how a person’s job, physical activity, and body composition across their lifetime interact to trigger musculoskeletal disorders such as osteoarthritis, back pain, and muscle wasting. Current prevention strategies are blunt—they tell people to “lift safely” without accounting for decades of cumulative strain or underlying metabolic conditions like obesity and diabetes that weaken joints and muscles. If this research succeeds, it could shift workplace health guidance from generic advice to targeted interventions: identifying which workers are at highest risk before they become disabled, and designing job rotations, equipment, or exercise regimes that match individual biology rather than one-size-fits-all rules. The programme also explores whether preventing musculoskeletal decline in mid-life can reduce the burden on the NHS from falls, fractures, and joint replacements in older age. This is applied epidemiology—the findings will feed directly into public health policy and occupational health practice.