Is Air Pollution Really That Bad for Young, Fit Guys?


Dirty air hurts even the young and healthy, Circulation Research reports.

For three years, scientists took blood samples from 72 Utah residents, beginning when they were about 23 years old. When the samples were compared with concurrent air-pollution data, the conclusion was inescapable: The more pollution, the more dead cells in the blood, which can damage blood vessels and lead to high blood pressure, heart attack, and stroke.