electronic cigarette effects Frontiers About E-Cigarettes (Vapes) | Smoking

These results agree with our previous study 6 , demonstrating that GP radicals in the mainstream smoke of US cigarette brands were strongly correlated with the tobacco nitrate levels (r = 0.87, p 8-fold, ranging from 49 3 ng/g (American Spirit Orange) to 407 31 ng/g (Lucky Strike Red), and were moderately correlated to nitrate content (r = 0.42, p = 0.03, Figure 2)

[DOI] [PubMed] [Google Scholar] Clark MM, Niaura R, King TK, Pera V

Menthol cigarettes alone have likely been responsible for more than 10 million extra smokers and 378,000 premature deaths

PMID 18218073

It contains a highly addictive psychoactive ingredient, Nicotine