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"But we found the e-liquids caused changes in the endothelial cells that are closely related to those seen during the development of cardiovascular disease." The researchers investigated the effect of six different popular e-liquid flavors - fruit, tobacco, sweet tobacco with caramel and vanilla, sweet butterscotch, cinnamon, and menthol - with nicotine levels of 0, 6, and 18 milligrams per milliliter on endothelial cells derived from human iPS cells

1,2 Smoking cigarettes can also cause CVD by changing your blood chemistry

The brain scan study of cannabis users is one of the first to investigate the drugs long-term neurological impact in living people

"It provides a local anesthetic, if you will, a cooling effect," Hays said

Bhat TA, Panzica L, Kalathil SG, Thanavala Y

An independent study from 2018 is less encouraging, finding that 63 percent of heated tobacco users in Japan were still smoking cigarettes at least once a month