what does one pack of cigarettes do to your lungs Smoking a a day for a year causes 150 mutations in lung cells Smoking: Effects, Risks, Diseases, Quitting

He said schools and other institutions should provide specialized education to build stronger psychological resistance to drugs before experimentation begins

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"[Lungs are] supposed to be pink and spongy and elastic, but it loses all this as over 7,000 chemicals hit this organ hard and thats how it loses the color, loses the elasticity," he said

Each subject was provided with enough cigarettes to smoke for 5 days, on the basis of their self-reported average daily cigarette consumption declared at the start of the study, plus an additional 30% rounded up to the nearest pack