9
votes
Accepted
Why does breathing stop during cardiac arrest?
During approximately 50% of cardiac arrests, the patient continues to breathe for a time. However, this breathing is known as agonal respiration and is essentially gasping for air. This gasping is ...
- 874
9
votes
Is a hyperventilation+hypoventilation breathing exercise (Wim Hof Method) more likely to prevent or promote cancer?
Hyperventilation can lead to reduced oxygen transport to cells. As a result, ineffective breathing patterns can cause cell and tissue hypoxia, chronic inflammation, immunosuppression, and many other ...
- 958
6
votes
Accepted
Is a hyperventilation+hypoventilation breathing exercise (Wim Hof Method) more likely to prevent or promote cancer?
Apart from monks and nuns who showcase impressive abilities Wim Hof is onto something. One anecdote reads as follows:
I’ve also experienced the positive changes myself, […] My cardiovascular and ...
- 6,918
6
votes
Accepted
Simulate hypoxic training by breath holding/regulation
The approach you describe most likely will not work, and could be detrimental to your training.
The main benefit of training at altitude is that the body will adapt to the lower concentration of ...
- 6,678
6
votes
Accepted
When should one stop CPR?
If the patient is breathing normally, stop CPR.
Image Source: Official Guidelines of the European Resuscitation Council, latest edition: 2015. Section 2, p.88
The part that made me personally most ...
- 6,930
5
votes
Is it possible for the lungs and heart to work independently of one another?
The above answer is correct: no they can't function independently. I want to build on that answer with a couple additional points.
Consider that your heart beats while you hold your breath - but it ...
- 5,814
5
votes
Accepted
Is it possible for the lungs and heart to work independently of one another?
You're overlooking one important point: Both the heart and lungs are living tissue too, and without both circulating blood and oxygen they will die just like all the other tissues in the body. So no, ...
- 9,935
5
votes
Can ear wax cause nasal congestion?
In addition to the above, see this diagram. Your MIDDLE ear (highlighted in blue) connects to your sinus via the Eustachian tube (where it drains into the sinus cavity isn't showed). Your EXTERNAL ...
- 5,814
5
votes
Accepted
Why does one breaths out heavily in cold days but breathe in very easily?
Exhaling through tightly pressed lips is called pursed lip breathing, in which the effort of exhaling is felt only in the lips and cheeks. This way you increase the pressure in the small airways, ...
- 15.9k
4
votes
Are hand-made mask using HEPA safe to breath through?
Shop-vac, a major manufacturer of HEPA material strongly advises against using their vacuum bags to make a filter
First, the filter materials used in the vacuum cleaners are for no purpose other than ...
- 13.3k
4
votes
Accepted
How would a newborn infant reflexively breathing react to rescue breaths administered correctly after birth?
If the cord is the only reason that prevents the baby to start breathing spontaneously and the baby is otherwise healthy then the situation could resolve as you assumed.
Two breaths could suffice, ...
- 15.9k
3
votes
Inspiratory and Expiratory Muscle Training
The Powerbreathe is an inspiratory muscle trainer promoted as improving inspiratory muscle strength (and consequently exercise performance) in athletes and patients with respiratory disease. No ...
- 716
3
votes
Why does one breaths out heavily in cold days but breathe in very easily?
Breathing in is a an active action requiring muscle. Expiration is passive, so occurs more slowly.
Breathing in - inhalation - takes less time than exhalation.
Normal I:E [Inspiration:Experation] ...
- 10.1k
3
votes
Is it possible for someone to develop Aspiration Pneumonia from standing in very heavy rain?
Inhaling sprayed water while staying in heavy rain does not likely cause aspiration pneumonia, at least not by water itself. I have found no relevant results after searching for combination of: rain, ...
- 15.9k
3
votes
Can ear wax cause nasal congestion?
It seems unlikely that ear wax could cause nasal congestion and restricted breathing, since in relatively healthy individuals, the ear canal is separated from the middle ear by the tympanic membrane (...
- 1,462
3
votes
Accepted
Have to constantly pick my nose in order to breathe normally
You may see improvement by using a saline spray several times a day. Don't pick, as picking will favor the formation of crusts. You'll need to find some alternate things to fidget with for the ...
- 470
2
votes
Nasal congestion on wakeup in healthy individuals vs. vasomotor rhinitis sufferers
Let's first clarify that "vasomotor rhinitis (VMR) otherwise known as non-allergic rhinitis" is the non-allergic reaction (NAR), which can be similar in symptoms to the allergic reaction (AR), but not ...
- 4,876
2
votes
Does Clinical death experience and sleep paralysis experience the same? did anyone die due to sleep paralysis?
This is a complicated question. As far as I understand this it is about comparing near death experiences and sleep paralysis. (Commonly, I would regard in this context "clinical death" as real death. ...
- 6,918
2
votes
Accepted
What are clinically advised methods to improve nocturnal respiration other than CPAP?
Breathing difficulties during sleep determined to be caused by the narrowing or closing of their airway
Breathing difficulties during sleep indicates suffering of Obstructive Sleep Apnoea (OSA). ...
- 6,236
2
votes
How can breathing techniques lessen anxiety?
Neuroscience is complex; this is a simplification. To summarize: yes, breathing techniques and other meditation and biofeedback methods have been shown to be effective for reducing anxiety and panic, ...
- 5,814
2
votes
What is a normal lower limit for blood oxygen (sp02)?
According to Minnesota Dept. of Health:
A normal level of oxygen is usually at least 95% or higher. Some people with chronic lung disease or
sleep apnea can have normal levels of around 90%. The SpO2 ...
2
votes
Can someone die of asphyxiation while still having high oxygen saturation?
Yes, it is absolutely possible. There are several poisons, most notably cyanide, which interfere with the body's ability to take up or use oxygen from the blood, despite it being present in ample ...
- 3,366
1
vote
Is it possible to survive too high CO2 by also having too high O2 concentration?
CO2 is a simple asphyxiant, which means it's only toxic when it's displacing oxygen. And since your question proposes that the O2 level is being supplemented, then if the percentage of O2 in the air ...
- 9,935
1
vote
Accepted
How is nitrogen not exchanged in respiration?
There is no specific mechanism to carry nitrogen in blood, it is carried in a dissolved form unlike oxygen which uses the protein haemoglobin which is contained in red cells.
Animals can not utilize ...
- 13.3k
1
vote
Simulate hypoxic training by breath holding/regulation
Since there is a good answer already I'll just add my two cents from my understanding of physiology:
Hypoventilation has two effects during exercise:
Less available oxygen in your lungs and a ...
- 101
1
vote
How much water weight is it normal to lose while sleeping?
This is much easier to measure than to calculate.
After urinating and before going to bed, weigh yourself. After getting up, urinating and having a bowel movement (bm is mostly water) weigh yourself ...
- 15.9k
1
vote
Permanent stuffy nose...?
To answer your question: yes, adults can receive surgery for a deviated septum. All surgeries have recovery time and the potential for complications, and this one does not resolve symptoms 100% of the ...
- 272
1
vote
Permanent stuffy nose...?
I remember adolescents getting nose jobs for their deviated septums. I am surprised that all the doctors did not mention the deviated septum. Have you explored the realm of allergies?
I had been, ...
- 31
Only top scored, non community-wiki answers of a minimum length are eligible