/sci/ - Science & Math

some old memes

>>11695469
Prove that smoking caused it.

>>10942044
>tobacco causes cancer,

>>10795512
>>10795520
To this day, tobacco smoke inhalation has never been shown to cause cancer.

Is smoking weed really that bad for you?

>>10624023
>Not really. Pure, natural tobacco is still carcinogenic
Wrong.
Tobacco smoke itself has never been proven to be carcinogenic, which is why it fails to induce cancer in any experimental study at rates above control in any species tested. The case that it is carcinogenic rests on non-randomized epidemiological studies. Because tobacco fails to induce cancer, researchers have to point to specific ingredients in it (straw man), as the proposed agents. However, this is a dishonest argument as say the benzopyrenes are found in greater quantities in seared meats, and trace heavy metals are found in all soil grown plants, at similar or greater levels. There also are anticarcinogenic constituents such as polyphenols and other antioxidants, which mitigate any potentials carcninogens. Smokers have lower levels of IGF-1, a marker associated with cancer in old age.


https://www.ncbi.nlm.nih.gov/pubmed/9608635

>No statistically significant increase in the incidence of malignant lung tumors was seen in either species as a result of smoke exposure, a finding that does not agree with the results of epidemiological studies in humans. Possible reasons for this lack of correlation are given.

>>10621317
>>10621334
Smoking does not cause lung cancer, period.

>>10599355
Indeed.
>>10599372
>makes your arteries sticky and clogs them temporarily, while smoking normally gradually clogs your arteries.
The stupidity of some people here.

Real doctors smoke.

>>10449227
Tobacco.

Take the tobacco pill.

>>10380756
Curious indeed.

>>10370935
There is no hard evidence to show that smoking tobacco induces cancer. Only epidemiological studies, asserting causation from a correlation established with dubious design that seldom corrects for other lifestyle factors (eg diet, exercise, work place and occupational hazard) and inherently biased sampling techniques (eg self-selected participation, cohorts) exist.

>>10341605
Tobacco is harmless in the first place.
In fact, I'd make the argument that tobacco is acutely better for the lungs for evolutionary mechanisms against a sudden introduction of moisture (and withdrawal assuming the hygroscopic PG/VG has not fully captured) in vast quantities, has yet to develop. This overwhelms the lung and causes scar tissue to develop in response. This is why many vapers have a chronic cough and cannot handle cigarettes any more after vaping.

Nicotine ROA from best to worst
God tier
>Tobacco Smoke
Very good tier
>Nicotrol Inhaler
OK tier
>Nicotine Patch
>Nicotine gum/lozenge
remotely tolerable tier
>snus
SHIT TIER
>e-cigs
>chew

>>10277033
>>10277076
Cigarettes smoking not cause cancer and that meme you posted is false, conducted on dead tissue.

>Anno Domini MMXVIII
>still smoking e-cigarettes
not gonna make it.

>>10198109
Blood pressure: Tobacco smoking causes a paradoxical fall in blood pressure to fall in many individuals owing to nitric oxide modulation actions independent of nicotine. Moreover, heavy smokers have a mild level of MAO inhibition from the constituents of tobacco smoke which causes norepinephrine to be partially displaced with octopamine, likewise precipitating hypotension to some extent. Indeed, physicians of the past were perplexed when smokers presented LOWER blood pressure than even their non-smoking patients.

As for the migraine relief: Tobacco contains significant amounts of the antioxidant and antimigraine agent Coenzyme Q10, which alleviates or entirely abolishes migraines and headaches in many individuals both as an prophylactic and abortive agent.

>>10195609
does smoking not really cause cancer like /pol/ says?

>>10186798
You thought wrong. Don't use commercial cigarettes with additives, filters and FSC though. Roll your own.

>>10186470
He said nothing that was factually incorrect. You just have an NPC like reaction to controversial information that you can't reconcile. How does it feel to be a brainlet?