which is more harmful beer or cigarette The Dangerous Effect of Mixing Alcohol and Tobacco How alcohol affects your health
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Research has shown smoking increases tension and anxiety

Table 3 [i] The table reported results of multivariable logistic regression models
The sperm concentration of heavy smokers was 19% lower than that of non-smokers

Schuler M, Green DR

Also, how you smoke determines how much nicotine your body will be exposed to

Squonk / Squonking / Squonker / Bottom Feed: This is a type of device which feeds e-liquid from the mod to the atomiser