Recent research has revealed that air pollution may be causing people across the UK to develop long-term health conditions sooner than expected. Scientists describe pollution as a “hidden driver” that reduces the number of years individuals live in good health. The study tracked nearly 400,000 UK participants over a period of up to 15 years, analysing medical records alongside lifestyle factors such as smoking, alcohol use, and socioeconomic background.

The findings suggest that exposure to polluted air is connected to the earlier development of a wide range of diseases affecting multiple organs. Particularly notable was the strong link to neurological and mental health conditions, including dementia, Parkinson’s disease, schizophrenia, and dystonia. Researchers were struck by how widespread and severe the impact appeared across different systems in the body.

Using advanced modelling, the team estimated how much healthier people could be if pollution levels met the World Health Organization’s 2021 guidelines. Their results indicate that hundreds of thousands of years of illness could potentially be avoided. On average, individuals might gain over a year of good health, with some conditions, such as high blood pressure and diabetes, developing months later.

Experts say these findings reinforce the urgent need to tackle air pollution. Lowering exposure could not only improve quality of life but also reduce pressure on the NHS and help address health inequalities, particularly in communities most affected by poor air quality.