A systematic review published in the Journal of Cardiovascular Research suggests that e-cigarettes can stiffen arteries while inducing increased heart rates and blood pressure. The study cautions that newer generation e-cigarettes provide longer and higher concentration exposures than earlier models, thus suggesting past research may have underestimated risks. Authors of the study emphasize that more research on long-term effects are needed and that individuals should not start using e-cigarettes outside of a nicotine reduction therapy.
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