my chest hurts after smoking cigarettes Pain from Weed Experiencing Pain in Your Chest

The key words are completely and not risk-free. The bottom line This is not a green light for vaping

Tar and resin buildup can cause a very heavy, uncomfortable feeling in your lungs and chest

It has been reported in the literature that cigarette smoke induces NCOA4-mediated ferritin phagocytosis, resulting in an increase in free iron and resulting in increased iron death in lung epithelial cells, which exacerbates the progression of COPD [57]

[18] Among the diseases that can be caused by smoking are vascular stenosis, lung cancer, [19] heart attacks [20] and chronic obstructive pulmonary disease (COPD)

One thing worth mentioning is your tooth and gum health

Rodent Models of Infectious Gastrointestinal and Liver Cancer