Flavouring and additive ingredients used in e-cigarettes are more likely to increase inflammation and impair lung function, according to new research.
E-cigarettes -- popular battery-powered devices that simulate the act of smoking a traditional cigarette -- dispense a vapour derived from liquid chemicals in a refillable cartridge.
Researchers from the University of Athens found that short-term exposure to e-cigarettes was enough to cause lung inflammation similar or worse than that seen in traditional cigarette use.
The study, published in the American Journal of Physiology - Lung Cellular and Molecular Physiology, examined several groups of mice that received whole-body exposure to varying chemical combinations four times each day.
Each exposure session was separated by 30-minute smoke-free intervals.