As stupid as EPA’s claim that breathing outdoor air is more dangerous than smoking.
There is no evidence to support this claim in human populations. Inhalation experiments in lab animals don’t really work — i.e., the lab animals change their breathing pattern in response to junk in the air. Also, mice aren’t little people and there is no credible evidence that smoking by itself (vs., say, the smoking lifestyle) increases stroke risk.
For more on the referenced EPA claim, read “Scare Pollution: Why and How to Fix the EPA.”
The media release and abstract are below.
E-cigarettes may pose the same or higher risk of stroke severity as tobacco smoke
AMERICAN HEART ASSOCIATION
Electronic cigarette (e-cigarettes) vaping may pose just as much or even higher risk as smoking tobacco for worsening a stroke, according to a preliminary study in mice presented at the American Heart Association’s International Stroke Conference 2017.
Mice exposed to e-cigarette vapor for 10 days or 30 days had worse stroke outcome and neurological deficits, than those exposed to tobacco smoke.
E-cigarette exposure decreased glucose uptake in the brain. Glucose fuels brain activity.
Both e-Cig and tobacco smoke exposure for 30 days significantly impaired circulating levels of an enzyme required for clotting — potentially increasing the risk for stroke and worsened secondary brain injury.
From a brain health perspective, researchers said, electronic-cigarette vaping is not safer than tobacco smoking, and may pose a similar, if not higher risk for stroke severity.
Use of e-cigarettes is a growing health concern in both smoking and nonsmoking populations. Researchers said rigorous studies are needed to investigate the effects of the nicotine exposure via e-cigarettes on brain and stroke outcome.