Questions tagged [lungs]

Questions pertaining to each of the pair of organs situated within the rib cage, consisting of elastic sacs with branching passages into which air is drawn, so that oxygen can pass into the blood and carbon dioxide be removed.

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18
votes
2answers
28k views

Is "smokers lungs" a lie?

We've probably all seen photos of smokers' lungs compared to non-smokers lungs. For example: These images are commonly used in anti-smoking materials, at least in the US, and I've never had cause to ...
10
votes
2answers
5k views

How long after quitting smoking to expel tar from lungs?

I quit smoking over a year ago, before that, i used to smoke up to a maximum of 9 cigarettes a day. However, up until now, I did not cough up tar, only clear sticky mucus comes out. I want to know ...
9
votes
3answers
6k views

How far away from a highway should I live to avoid negative health effects?

Many articles on the internet claim that living near highways can be harmful to one's health. Here is an example: https://www.thestar.com/news/canada/2017/01/05/living-close-to-high-traffic-roads-...
9
votes
1answer
396 views

Does breathing heavily whilst having bronchitis have potential of furthering the illness?

I am currently practicing a heavy and fast breathing technique that supposedly boosts immunity by pumping the lymph I was wondering, considering I have bronchitis at the moment could that further the ...
8
votes
1answer
270 views

What is the significance of 1 second in calculations of PFTs

During PFTs (Pulmonary Function Testing), we take FEV1 (Forced Expiratory Volume in 1 second) and the divide it by FVC (Forced Vital Capacity). What is so special about FEV in one second, as opposed ...
7
votes
1answer
131 views

Bleomycin and Oxygen

Do patients exposed to bleomycin as a part of their chemotherapy regime have to avoid exposure to concentrated levels of oxygen for the rest of their life? If not, how long after treatment ceases ...
6
votes
1answer
92 views

Is asthma a disease?

Our family doctor said that asthma is not a disease, is he right? I already searched and found every where asthma called as disease. Like http://www.webmd.com/asthma/guide/what-is-asthma Asthma ...
6
votes
0answers
89 views

What's caused by the chemicals, and what's caused by the smoke

The great many downsides of smoking are certainly well-documented by now (to say the least), but something I've struggled to find an answer to is the following: When looking at health risks of ...
6
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0answers
87 views

Modern treatment of bronchitis [closed]

On the internet there are dozens or even hundreds of medicines claiming to help if you have bronchitis. But is there a modern and tested approach to treating this illness? Or has nothing really ...
5
votes
1answer
90 views

What study materials can a layperson use to gain a deeper understanding of lung cancer?

I am an outsider to the medical sciences, yet now in desperate need of knowledge to help a family member with lung cancer navigate the difficult medical system in our country. I would like to develop ...
5
votes
1answer
5k views

What safety precautions should I take after spilling isopropyl alcohol?

My 16 year old son accidentally spilled about 200 ml of isopropyl alcohol over a large area on my carpet. The problem is it covers a large area and it smell very bad there. The room is about 100 sqft ....
5
votes
0answers
68 views

When trapped in an air pocket does breathing slowly prolong the amount of time you have? [closed]

So there is roughly 21% oxygen in the air. When taking a "normal" breath you saturate your blood with oxygen and exhale air with roughly 16% oxygen. With that in mind, I am curious if changing your ...
4
votes
2answers
155 views

What is the cause of the vaping-related outbreak of lung injuries?

According to the CDC, there are reports of more than 1000 patients in the US with vaping-associated lung injuries, and 23 deaths have been confirmed. The median age of deceased patients is 49.5 years, ...
4
votes
1answer
80 views

Avoiding acute mountain sickness, high altitude pulmonary & cerebral edema

I have to fly to a town which is at high altitude. What precautions/drugs can I take to avoid acute mountain sickness or more life threatening accumulation of fluid in brain or lungs (high altitude ...
4
votes
1answer
880 views

What happens when a person gets the wind knocked out of them?

I asked a question on Martial Arts.SE about why many boxers combine each punch they throw with a rapid exhalation (making a pronounced, sharp huffing or hissing sound). Some of the answers say that ...
4
votes
0answers
205 views

Can the tar in our lungs from cigarettes be removed from our body after stopping smoking? [closed]

I have been smoking a lot of cigarettes these days and am concerned about my lungs. Can/will the tar in my lungs from cigarettes ever be removed?
4
votes
2answers
107 views

By how much does former smoking reduce one's lifespan?

If someone in their late teens/early 20s smoked 20 cigarettes a day for 5-10 years, and then never smoked again, by approximately how much would that reduce their lifespan?
4
votes
1answer
773 views

Carbon Dioxide Poisoning in Everyday Situations

I am wondering whether slight CO2 poisoning (hypercapnia) can be induced by everyday bad behaviour. I am particularly interested in the consequences of The prolonged use of a surgical mask (a.k.a. ...
3
votes
2answers
119 views

Too much sitting as bad as smoking?

I have heard that when you sit very long times every day that it is as bad for your health as smoking cigarettes. Especially, it is bad for your metabolism and especially the lungs get into a bad ...
3
votes
1answer
8k views

What kind of doctor or physician do I need to consult for continuous coughing?

I have a dry cough. It's persisting from last few months ( more than 3 months). There is no chest pain. Slight cold environment causes me urge to cough, irritation happens inside the chest. I have ...
3
votes
1answer
53 views

Does oxygen supplementation in case of pneumonia cause effects other than possibly preventing hypoxemia?

I've been reading about oxygen supplementation and have a question about the effects of oxygen supplementation in case of pneumonia. Patients with aspiration pneumonitis or pneumonia may progress to ...
3
votes
1answer
559 views

Bleomycin and Cannabis

To my understanding, bleomycin has a considerably detrimental effect on the lungs of a patient taking it as a part of their chemotherapy regime. However, my question is, if a patient smokes cannabis (...
3
votes
0answers
33 views

Is black spotting on the lungs a common benign variance, or a sign of pathology?

I recently found this article which shows an externally-healed lung donation before transplant. The left image is supposedly the lung pre-treatment, and right is post. In both of these images, black ...
3
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0answers
26 views

Are there probiotics for upper respiratory tract tissue?

If the lungs can be subject to bacterial infection, why do there not exist beneficial probiotics that live in lung tissue to combat "bad" bacteria proliferation?
3
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0answers
39 views

Is sinus mucus inhalation a high risk of pneumonia?

I understand that inhalation of food or stomach contents has a very high risk of causing pneumonia. Is routine sinus mucus , not caused by a cold of other illness, likely to cause pneumonia if inhaled ...
3
votes
0answers
15 views

Why oligohydramnios leads to hypoplasia of lung?

What I found for the question is that due to - Oligohydramnios reduces the intrathoracic cavity size, thus disrupting fetal lung growth and leading to pulmonary hypoplasia. decreased fetal breathing ...
3
votes
0answers
38 views

Does tidal volume have any significance in a pulmonary function test?

In a pulmonary function test (PFT) two important parameters are forced vital capacity (FVC), forced expiratory volume in one sec (FEV1). These are useful for diagnosing obstructive and restrictive ...
3
votes
0answers
83 views

40 y/o woman admitted with ARDS but normal values

Second year medical student asking: A 40 year old woman is admitted to the ICU with acute respiratory distress syndrome due to a life threatening case of pneumonia. Her respiratory values are as ...
3
votes
0answers
185 views

Is smoke from oil lamp dangerous [closed]

There was a power outage recently in my flat, so I decided to light up some older oil lamp I found. I didn't notice that as the wick was probably too large, the lamp was smoking whole night. When I ...
2
votes
2answers
328 views

Is it possible for the lungs and heart to work independently of one another?

I understand that the lungs take in oxygen, pass it to the heart to send throughout the body, and receive CO2 from cellular respiration that the lungs then breathe out. (Oversimplified, I know, but ...
2
votes
1answer
1k views

What is 'Rising of the lights' as a death?

In a reddit post showing the 'Causes of death of london in 1632' Theres a few causes that seem weird. But the one the caught my attention is 'Rising of the lights'. The best I've seen is that Lights =...
2
votes
1answer
68 views

Inspiratory and Expiratory Muscle Training

I'm interested in the scientific evidence of inspiratory and expiratory muscle training. There are various breathing training devices: According to their description, they enhance "strength and ...
2
votes
1answer
510 views

Is it dangerous to inhale agar-agar jelly

I want to make hookah aroma made from agar-agar dissolved in vegetable glycerin, aromas and high quality flavored vodka, but from what I heard, agar-agar expands within the stomach and is as well heat-...
2
votes
1answer
149 views

Can COVID-19 be damaging lung without showing fever? [closed]

Given that a man of 39 years without underlying health condition, is having chest discomfort and tightness, which is more discomfort during evening and night before fall asleep. He don't have cold and ...
2
votes
1answer
69 views

How likely is it to develop pneumonia as a result of COVID-19?

The severity of n=44,672 confirmed COVID-19 cases in Mainland China as of February 11, 2020** as a result of the SARS-CoV-2 (previously 2019-nCoV) virus is as follows: 81% mild (assumed: no ...
2
votes
1answer
98 views

How to breath better when you live in a big city?

We know that big cities have bad effects on health, due to their poor quality of air. The main pollutants we find in the air are PM10, nitrogen dioxyde and ozone. These three pollutants hazardous to ...
2
votes
0answers
1k views

Is the IQOS heat-not-burn cigarette safe?

I am researching the topic of electronic cigarettes and have recognized that Philip Morris has recently introduced in some markets the IQOS heat-not-burn cigarettes. What is their safety profile in ...
2
votes
0answers
44 views

Liquid in Lungs? [closed]

So, here I was, eating and drinking in the car because my family didn't have time to stop and eat (we're on vacation) and, anyways, while I was swallowing my strawberry hi-c, I felt this odd, tickly ...
2
votes
0answers
50 views

Will running next to a highway cause me to inhale more particulates?

I'm wondering if running next to a highway will cause humans to inhale more particulate matter and harmful substances.
1
vote
2answers
126 views

Why recovered patients develop lung disease due Covid-19?

In this link https://www.dw.com/en/covid-19-recovered-patients-have-partially-reduced-lung-function/a-52859671 we can see Now researchers in Hong Kong have said that recovered coronavirus patients ...
1
vote
1answer
104 views

how to clean ex smokers lungs

I am ex smoker. I smoked for decade and quit smoking. here on [this link]http://hangover-cure.co.uk/smokers-and-ex-smokers/) I have found a solution for cleansing the lung. is it safe and a possibke ...
1
vote
1answer
47 views

Can tumor size (T) and presence of cancer in the lymph nodes (N) in patients with lung cancer be identified on the first visit?

I am a scientific researcher working on lung cancer. I am trying to develop a machine learning method able to process just few early detection features and then predict if a patient with lung cancer ...
1
vote
1answer
61 views

How is nitrogen not exchanged in respiration? [closed]

Air is 78% of nitrogen. When we inhale air, we inhale large amounts of nitrogen when compared to oxygen. How is nitrogen not exchanged? How is it exhaled?
1
vote
1answer
56 views

How many ECMO machines does China have?

Is there any data on how many ECMO machines in China? I know that there are about 260 machines in the united states but I have found no data about China on such matter. I want to compare the ...
1
vote
2answers
523 views

Effective use of a mask for allergies, asthma and bronchitis?

I was diagnosed with adult onset asthma after a bout of bronchitis last year. On top of that, I have allergies to most environmentals and I live in a desert environment with dust in the air. So I am ...
1
vote
1answer
64 views

Strengthening / recovering lungs? What is the science behind this?

Some interesting smoking questions have led me to ask this. I am myself a recovering tobacco addict - I stopped a few months ago. Though my health has improved vastly, I still can easily get wheezing /...
1
vote
0answers
18 views

Why are inhaled corticosteroids not used in the treatment of pneumonia?

Common sense made me think of the need for inflammation reduction in case of pneumonia and the anti-inflammatory characteristics of inhaled corticosteroids. I Googled and found a study1 from 2017 that ...
1
vote
0answers
31 views

Can Weightlessness help cleaning lungs from Microorganism in Covid-19 patients? [closed]

We know that cleaning lungs from Microorganisms in Covid-19 patients is hard. But In Weightlessness materials easily move around. So could Artificial Weightlessness help doctors for safer and more ...
1
vote
0answers
7 views

Effects of Exposure to Periodic, Long-term PM2.5 Pollution

The EPA's AQI quantifies air pollution, sets out ranges of pollution, and associates health risks with each range. Quoting from PurpleAir: "101-150: Members of sensitive groups may experience ...
1
vote
0answers
24 views

Is it possible that inhaling copper vapor, in some form, can help in treating a bacterial or viral infection of the lung? [closed]

There are many studies showing the antimicrobial properties of copper. Based on these properties, is it possible that inhaling copper vapor, in some form, can help in treating a bacterial or viral ...