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Zyns popularity has exploded since 2019, increasing over 641% through 2022, primarily among teens and young adults

Palamidas A, Tsikrika S, Katsaounou PA, Vakali S, Gennimata S-A, Kaltsakas G, Gratziou C, Koulouris N (2017) Acute effects of short term use of ecigarettes on airways physiology and respiratory symptoms in smokers with and without airway obstructive diseases and in healthy non smokers
However, any product claiming to help users quit smoking were regulated as medical devices

When he does, though, he finds that his work has been edited quite severely, with the ending changed
