JUUL delivers substantially more nicotine than previous generation e-cigs and cigarettes: study

JUUL delivers substantially more nicotine to the blood per puff than cigarettes or previous-generation e-cigarettes (e-cigs) and impairs blood vessel function comparable to cigarette smoke, according to a new study by researchers at UC San Francisco.

source https://www.lifetechnology.com/blogs/life-technology-medical-news/juul-delivers-substantially-more-nicotine-than-previous-generation-e-cigs-and-cigarettes-study