An analysis of health insurance records of almost two million coronavirus patients found new issues in nearly a quarter — including those whose Covid infection was mild or asymptomatic.

The study shows that people with lower income and education have worse lung health, even though air quality has improved in recent decades.

Listen to this episode from WSJ’s The Future of Everything on Spotify. The battle against noise has been waged, rather quietly, for decades. And yet, urban noise pollution is getting worse. A growing body of evidence indicates that it is more than a nuisance- persistent exposure to noise can cause chronic health issues. Anyone can be impacted, but marginalized communities most often live closer to sources of unwanted noise. In this episode, we look at the impacts of urban noise, new efforts to understand and track it and consider design solutions that can help mitigate unwanted sound.

This is a story about maps and death.