Lungs with memory

https://www.newscientist.com/article/2076952-60-seconds/

New Scientist magazine
Feb. 13, 2016, page 7

People who inhaled toxic fumes decades ago are still more likely to die than those who did not (Thorax, doi.org/bcfc). A study of 368,000 people in England and Wales showed that someone who lived in a more polluted area in 1971 had a 14 per cent higher risk of dying in 2002-9 than someone who had lived in a less polluted area.