30
votes
Accepted
Is "smokers lungs" a lie?
So my question is: Are smokers' lungs visibly and routinely blackened and/or discolored in the absence of lung disease?
That last phrase is tricky, because smokers who have heavy pigmentation are ...
- 9,384
29
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 ...
- 6,742
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: ...
- 316
8
votes
Accepted
Can quitting smoking cause stomach problems?
No one can prove that quitting smoking doesn't cause frequent bowel movements in a particular individual, but it's not a symptom generally associated with quitting smoking. The usual symptoms are:
...
- 9,694
8
votes
Accepted
Smoking just after a workout
Smoking in general is unhealthy. Smoking can result in emphysema, COPD, pulmonary hypertension and other ugly diseases [1,2,3]. After a workout your heart and respiration rates are higher than at ...
- 321
8
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 ...
- 181
6
votes
Are tobacco packaging warning messages improving health of society?
There are some studied done about it. Here is the list of them
Effectiveness of cigarette warning labels
Perceived Believability of Warning Label Information
Do Cigarette Warning Labels Reduce ...
- 305
5
votes
Accepted
What is the effect of smoking before or during early pregnancy on the baby?
While most studies appear to be on women who quit during pregnancy, I found a study that compared pregnancy outcomes in women who never smoked, quit smoking before pregnancy, quit smoking in early ...
- 6,982
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 (...
- 424
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 ...
- 6,742
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 ...
- 5,754
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 ...
- 6,742
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 ...
- 6,154
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., & ...
- 6,154
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 ...
- 15.8k
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, ...
- 15.8k
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
3
votes
Toxicity of nicotine vs potassium cyanide
Most medical literature reports a similar level of toxicity between nicotine and cyanide - 50 mg for cyanide and 60 mg for nicotine as lethal doses. However, there is controversy over the true lethal ...
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-...
- 191
3
votes
Accepted
How serious is the risk of second hand smoke?
Unfortunately, you can't make a probabilistic estimate if you will contract heart disease or some form of cancer - there are too many variables to consider. How big is the room? How many people are ...
- 385
3
votes
Why does smoking increase the risk of developing medial epicondylitis?
Not too many studies showed any correlation between smoking and risk of epicondylitis but only one study mentioned it. They say:
Smoking may interfere with the circulation to tendons, which not ...
- 305
3
votes
Natural ways to quit smoking
Natural Ways to quit Smoking
Candy and Gum. Sucking candy or chewing gum can occupy your mouth and time much the same as cigarettes. Even lollipops can help.
The flavor of the gum keeps the mouth ...
- 2,965
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
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 ...
- 13.2k
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. "...
- 6,867
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. ...
- 91
2
votes
Accepted
Side effects of smoking cessation
A recent review looked at 26 studies that examined mental state after smoking cessation. The review found LESS depression among people who quit, not more.
http://www.ncbi.nlm.nih.gov/pmc/articles/...
- 456
2
votes
Do low-nicotine low-tar cigarettes have less negative impact on health than standard ones?
Probably yes on lung cancer, no for other diseases, but it's really hard to say.
Apparently, this 'trend' isn't very new - it goes back to the 1960s, though back then low-tar cigarettes contained ...
- 6,982
Only top scored, non community-wiki answers of a minimum length are eligible