03/12/2026
Most of us think about air quality in terms of pollution, smoke, or allergens. But there is something else in the air that rarely gets discussed: carbon dioxide. And a growing body of research suggests it may be doing more to our bodies than we realize, including affecting how anxious we feel on a daily basis.
Researchers tracked blood chemistry in 70,000 Americans over 2 decades. What they found about indoor air caught the attention of anxiety researchers.
