menthol in cigarettes and flavored cigars: the FDA is cracking down Biden administration pushes back plan

However, there is no risk of accidental ignition or damage and gas leakage

Dose-dependency: Smoking shows a clear dose-dependent effect on the risk of developing ED, with heavier smokers and those with longer smoking histories having a higher risk

non smoking sites say this is caused by nicotine I now doubt that this is true and is most likely caused by tar

Ossip, Li and colleagues said their findings showed that nicotine is a major factor of continued e-cigarette use after the FDA ban, as current adult e-cigarette users who used e-cigarettes without nicotine were more likely to quit e-cigarette use after the FDA flavor enforcement policy [OR = 3.49

Vancouversun.com

They don't seem to have any problems or issues of their own