one physiological effect of cigarette smoking is a decrease in cigarettes affects many aspects your body, including your physical endurance. If you smoke, you get less oxygen your heart, lungs and muscles. This reduces your physical fitness level 26 Health Effects of Smoking

He maintained, however, that because the rats used in the (inhalation) studies are obligatory nose breathers--they by nature breathe through their nose--only a very small portion of the smoke components ever reach or become deposited in the lung

OEM projects are highly welcomed

Additionally there is new scientific evidence, presented in JAMA Pediatrics, that vaping marijuana has led to significant uptake of use among high-school students, and is associated with serious negative physical and mental health outcomes in youth, including potentially fatal EVALI

Tobacco statistics

This has an aftermarket harness here as well