28
votes
Accepted
What are known health effects of smoking e-cigarettes
We do not know
That's a bit unsatisfying as an answer, but it's the truth. Vaping is around for somewhat 13 years (invented in 2003), but the international breakthrough was so recent that no long ...
- 6,931
10
votes
Accepted
Is there an established recommended maximum intake of cigarettes?
Yes
It’s zero.
See: Doll, R., & Hill, A. B. (1950). Smoking and carcinoma of the lung; preliminary report. British medical journal, 2(4682), 739–748. doi: 10.1136/bmj.2.4682.739 pubmed central: ...
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7
votes
What are known health effects of smoking e-cigarettes
The question might need isolation into two parts:
Nicotine addiction vs. inhaling combusted natural products
Cessation and the mere use of vaped products.
There should be little doubt that not ...
- 171
5
votes
Are cigars less harmful than cigarettes?
This is a common misconception - they're both terrible. Harm from smoke is mostly dose-dependent, meaning the more you smoke the worse harm you are causing your body.
But if we measure equivalent ...
- 5,814
5
votes
Does Nicotine cause Cancer?
There is not enough evidence either in support or in rebuttal...
EFFECTS OF CHRONIC OR REPEATED EXPOSURE:
Nicotine is a teratogen (capable of causing birth defects). Other developmental toxicity ...
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5
votes
Accepted
Is 2nd hand smoking worse than 1st hand smoking
TL;DR
Yes, if one was to inhale the same amount of smoke passively as smokers inhale actively, it would be more dangerous. This is hardly the case though, as smokers also inhale parts of second hand ...
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5
votes
Why do people smoke? Everyone knows it is unhealthy
Because when tobacco is smoked, nicotine causes physical and psychological dependency. You see, it acts on brain reward mechanisms, both indirectly (through endogenous opioid activity) and directly (...
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4
votes
Why do female smokers often have creases above their lips?
Skin wrinkles and creases are generally caused by a breakdown of the collagen framework within the skin.
Collagen is a key part of your skin's structure. It forms a network of fibers within your ...
- 6,236
4
votes
Quantify third-hand smoke exposure risk
The following are studies which indicate cancer risks from third hand tobacco smoke which to me seems non-ambiguous.
Sleiman, M., Logue, J. M., Luo, W., Pankow, J. F., Gundel, L. A., & ...
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4
votes
Are there beneficial compounds in cigarette smoke?
In short: In some studies, smoking was associated with reduced risk of retinopathy only in individuals with diabetes type 2, but with an increased risk in those with type 1. In diabetes type 2, ...
- 15.9k
4
votes
Accepted
It is well known that cigarette smoking makes Crohn's disease worse. Is it the nicotine or the toxins, or both?
As suggested by one small human study and one study in mice, nicotine might improve Crohn's disease in the colon but aggravate Crohn's disease in the small intestine.
Nicotine Enemas for Active ...
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3
votes
Are there beneficial compounds in cigarette smoke?
I've previously researched the answer to this question. I've inserted my research on this answer below. I'm very interested to hear what you think.
Nicotine is a component of cigarette smoke. ...
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3
votes
Accepted
Does Nicotine cause Cancer?
It is a common way to demonise substances in saying that they "cause cancer". In the case of recreational or habitual tobacco smoking there is no longer much debate over whether that is true or not. "...
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3
votes
Does relighting a cigarette have a harsher effect on your health?
This appears to be from a very old study
The rate of chronic bronchitis among relighters (39·7%) was higher than the rate (32·9%) among the remaining cigarette smokers. The difference was of high ...
- 13.3k
3
votes
Accepted
Is it dangerous to inhale agar-agar jelly
You can't.
Considering that agar melting temperature is approximately 85-95C / 176-185F and coals burns at around 200C / 392F at rest, providing temperature of at least 100C / 212F inside the bowl, ...
- 81
3
votes
How much damage is caused by smoking 2-3 cigarettes on a healthy body?
The moment you start smoking a cigarette, the damage to your body begins.
Not only physical, but mental health also begins to decline.
Here are a few things that happen inside a human body once ...
- 77
3
votes
Accepted
Too much sitting as bad as smoking?
If we compare the average increase in all-cause mortality due to sitting (approximately 50% according to meta-study published on NHS) and the average all-cause mortality due to smoking (aproximately ...
- 46
3
votes
How much risk am I taking by joining my coworkers for smoke breaks?
Your question has no correct answer. It is up to take the pain for a gain. What I would do is look for other times when I can build rapports.
However, studies show that non-smokers exposed to second-...
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3
votes
Accepted
How many people have been instantly killed by smoking?
Short answer: maybe a few, but not instantly.
Nicotine poisoning exists but rarely is it fatal. Especially, when it is delivered through smoking.
There have been very few incidents of death by ...
- 424
2
votes
What are the effects of smoking in the first week of pregnancy?
You are still very early in your pregnancy, so it is likely that everything will be fine if you take measures to stop smoking now. I would highly suggest meeting with your OBGYN to discuss safe ...
- 21
2
votes
By how much does former smoking reduce one's lifespan?
This has to be a speculative answer. Putting a Number on Smoking’s Toll?
Important is this:
People who quit between 25 and 34 years of age gained about 10 years of life compared to those who ...
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2
votes
Should I tolerate passive smoking?
Outdoor secondhand smoke certainly can be harmful. There are increasing numbers of locations banning outdoors smoking as well. The links provided above in the comments provide great information on ...
- 5,814
2
votes
Accepted
To what extend can passive smoking be dangerous?
Yes, passive smoking can induce an asthmatic attack and, depending on duration of exposure, harm your lungs. There is also a publication in NEJM from 1999 (http://www.nejm.org/doi/full/10.1056/...
2
votes
Accepted
Dangers of smoking hookah
Well, it isn't healthy.
It will not provide you vitamins, or cure you from cold.
TL;DR
But it isn't very unhealthy. What that means is that there are health risks you must take into account and ...
- 81
2
votes
Accepted
Is non-smoked nicotine a smoking cessation-aid?
Yes, nicotine replacement therapy is used in multiple forms, including a skin patch and oral dosing with gums and lozenges.
The purpose is to help avoid the side effects of nicotine withdrawal, while ...
- 14.4k
2
votes
smoking and coronavirus
Smokers have generally more ACE-2 enzymes in their lungs, which is the primary receptor for SARS-CoV-2. Some hypothesize that this means that having more ACE-2 receptors automatically means there is ...
- 121
1
vote
Does Nicotine cause Cancer?
I'd want to add to Narusan's answer the following: While nicotine by itself doesn't seem to be a carcinogen, to some degree it may be converted to carcinogenic N-nitrosonornicotine (a tobacco-specific ...
- 238
1
vote
Does 'vaping' affect your lungs?
I have done plenty of research and have found people only talking about E-Cigarettes, leaving me in confusion about if vapes without any nicotine contain harmful substances for your lungs. (I am not ...
- 238
1
vote
Accepted
Why do female smokers often have creases above their lips?
As far as I know this was never under experimental laboratory conditions in humans. But there are some observational, correlational and theoretical studies and considerations to explain the phenomenon....
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1
vote
Gas from cigarette smoke
The answer to your question is thirdhand smoking (THS):
From the American Nonsmoker's Right Foundation (ANRF), "Thirdhand smoke consists of the tobacco residue from cigarettes, cigars, and other ...
- 411
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