Other changes to cigarettes have occurred such as modifications of sizes and shapes of the products, agricultural practices, curing and processing of the tobacco, and the porosity of the paper
Before now, we had a large body of epidemiological evidence linking smoking with cancer, but now we can actually observe and quantify the molecular changes in the DNA, he said
The root of the discrepancy may be that Philip Morris surveyed IQOS customers, while ITC polled the general population, said Geoffrey Fong, founder and chief principal investigator of ITC
Secondhand smoke brings increased incidence of: Lung infections such as pneumonia and bronchitis Ear infections Colds and other respiratory illnesses Shortness of breath and wheezing Decreased lung function Sinusitis For children with asthma, secondhand smoke can trigger an attack