As homes get tighter and more energy efficient, the air inside them is quietly changing in ways you can feel but not always see. You may notice more headaches, lingering odors, or a stuffy heaviness ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Individuals with pre-existing heart problems may be more at risk from ...

Particle pollution is specifically to blame, the researchers say. Also called PM2.5 or particulate matter pollution, it’s the mix of solid and liquid droplets floating in the air, according to the US ...