Did cigarettes change there toxin since the 1930?

[Stoner710]

So smoking causes cancer right but my grandpa smoked for 40 years of his life and drank every day and died at 93 so I'm wondering why ovously a lot of things have change since there 1930 and most likely Tabaco as well but was my grandpa just like a super human lucky as shit or could it be his life style beyond smoking and drinking or is my family just stronge my grandma lived with 1 long since she was 17 had tuberculosis twice she smoked for 40 years and died at 83

[meowcow]

Your grandpa was just lucky.
Smoking cigarettes does not guarantee cancer. It merely increases the risk. There is no specific number of cigarettes a person has to smoke before they get cancer. The reason is that cancer results from genetic mutations at very specific genes. The mutagenic effect of cigarettes is random. Sometimes, the mutation affects a non-important gene, sometimes it affects a critical gene.

Within a population of smokers, a lot people more will die from cancer vs a non-smoking population. But there's no way to pre-determine which individuals will get cancer for certain. Some will get it early in life, others will never get it no matter how much they smoke. It's the luck of the draw.

[abundantlyrich]

Your grAndpa (rip) had a strong immune system

[abundantlyrich]

Id say there's bee more poison put in that cigarette people smoke today.