Well there's really no safe level of anything. Literally everything you do increases your odds of dying. It's all about proportion. Breathing doesn't increase your odds of dying very much.

The conversation around nicotine is severely lacking in comparisons of scale. It's all like "IF YOU SMOKE LITERALLY ONE CIGARETTE YOU WILL DIE OF HORRIBLE CANCER" which is a ridiculous thing to be putting out there. I get the intent, it's because cigarettes are addictive and smoking one usually leads to smoking more, but it really makes it difficult to get a sense of how harmful cigarettes actually are at lower dosages.

That first study you linked was a good one in this regard, but the summary still couldn't help but tend towards "you smoke at all, you will die". A graph would be helpful.

Actually, I'll just make one.

[–] [email protected] 4 points 1 year ago* (last edited 1 year ago)

There's safe levels of a lot of things

Sugar, nutmegs, magnesium, potassium, capsicin, salt, ... all of them becoming an issue if you go past your metabolism's limits

I think even cyanide has a safe quantity because it's in a lot of foods, but I can't find the source for it

[–] [email protected] 4 points 1 year ago (1 children)

I mean... Breathing doesn't increase your chance of dying, but not doing it will guarantee it. If you smoke, there is a good chance you will die from a horrible disease. That's the reality of it. With one cigarettes a day, smoking more will increase that chance.

[–] [email protected] 1 points 1 year ago* (last edited 1 year ago)

Same for alcohol, lead and absestos btw - no safe quantity has been found for all those

Every amount has a measurable negative effect with precise enough measurements