American Heart Association

‘Bad’ air may impact ‘good’ cholesterol, increase heart disease risk


Traffic-related air pollution may increase heart disease risk by lowering levels of so-called “good” cholesterol, according to new research.
In a study of 6,654 middle-aged and older adults from diverse ethnic backgrounds, participants living in areas with high air pollution levels tended to have lower high-density […]

Secondhand marijuana smoke may damage blood vessels as much as tobacco smoke

Breathing secondhand marijuana smoke could damage your heart and blood vessels as much as secondhand cigarette smoke, according to preliminary research presented at the American Heart Association’s Scientific Sessions 2014.

In the study, blood vessel function in lab rats dropped 70 percent after 30 minutes of exposure to secondhand marijuana […]