is pure tobacco healthy Cigars | Smoking and Use Suddenly Big Tobacco is deeply

Larger particles favor the larger and more central airways, while smaller particles are deposited in the smaller peripheral airways and sacs, leading to chronic inflammation, infections, oxidative stress and damage to the airways and gas exchange areas of the lung [15]

The description mentions: The dataset covers products from 6 main categories, Automotive, Books, Electronics, Movies, Phones and Home including 1529 sub-categories

The use of electronic cigarettes (e-cigarettes) is a relatively new phenomenon, and there are to date no long term epidemiological studies to determine the relative risk of their use compared to cigarette smoking or other forms of tobacco or nicotine use, simply because they have not been used and studied for long enough to determine this

The 2nd study surveyed 949 smokers and found that using e-cigarettes at the start of the study did not predict who quit at the end of the study (one year later)