Evidence grows of air pollution link with dementia and stroke risk

Mist and pollution over central London, pictured in 2021. Photograph: Michael Heath/Alamy

UK researchers have been looking at how air pollution contributes to dementia and brain ill-health.

Stroke is the second-leading cause of death globally, accounting for about 11% of deaths. About 50 million people live with dementia, and the figure is expected to rise to about 150 million by 2050.