Genetics. My grandmother smoked beginning in her teens and we got to watch her die of emphysema at 53 in the living room. Doesn’t seem like a good way to go.
All things in moderation I suppose.
It is.
People in the 1800’s and before had tapeworms and roundworms (tularemia).
Tobacco in the system killed off a lot of parasites (nicotine). Whisky as well.