This story was originally published by Mother Jones and is reproduced here as part of the Climate Desk collaboration.

Most of us associate car pollution with coughing and wheezing, but mounting evidence is linking air pollution to a less obvious health effect: dementia.

People who live near a major road are up to 12 percent more likely to develop dementia — a group of memory-loss disorders including Alzheimer’s disease — than those who live farther away, according to study published Wednesday in medical journal in The Lancet.