what is the smoke from cigarettes Happens to Your Body, When You Take a Puff of a Cigarette? Tobacco smoking - Wikipedia

Two years ago 1,224 people were hospitalized with poisoning or illness from e-cigarettes and heated tobacco products as the vape liquids were laced with drugs

Conclusion While vaping may be less harmful than traditional smoking, it can still have negative effects on your oral health, including teeth staining

A similar association was found in UC/indeterminate colitis however the results were not statistically significant (RR, 0.78

While Control Group was selected subjects who have never smoked in life and not having any other addiction related to tobacco and with no history of major illness like Hypertension, Diabetes Mellitus, Peripheral Neuropathy in past and present.The both groups were selected after proper counseling and written consent