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Questions tagged [breathing]

The physiological process of inhaling and exhaling air for the purpose of gas exchange in the lungs.

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308 votes
3 answers
287k views

Why do I only breathe out of one nostril?

I was just sitting with my hand next to my nose and I realized that air was only coming out of the right nostril. Why is that? I would think I would use both, it seems much more efficient. Have I ...
David says Reinstate Monica's user avatar
17 votes
4 answers
55k views

How can we differentiate between respiration and breathing?

I am a student of 10th grade, and I eagerly want to learn biology. What is the difference between respiration and breathing?
NigHterz's user avatar
  • 343
5 votes
3 answers
7k views

Breathing faster to lose (more) weight?

I understand that when the human body loses weight, the vast majority of that weight is lost as $CO_2$ (and a small bit is lost as water). I expect the predominant way $CO_2$ exits the body is through ...
electronpusher's user avatar
4 votes
2 answers
3k views

Sitting in a closed room filled with regular air - for how long will the air last?

The question has implicitely a lot of variables attached to it: volume of the room activity how closed the room is size of the person (I'm 168cm long and 64 kg heavy) That could probably be turned ...
Raffael's user avatar
  • 209
4 votes
1 answer
16k views

Why can't people talk while inhaling?

Why do we have to exhale in order to talk? From looking on Wikipedia, it seems like it has something to do with the glottis, but I'm not clear on the mechanism that makes speech sound so different ...
Adam Haun's user avatar
  • 151
3 votes
1 answer
245 views

Involuntary twitches and apnoea during early phases of sleep

I assume most people either experienced or have seen people with the following phenomenon: in the early phases of sleep sometimes involuntary twitches occur that usually accompany the pause of ...
Nandor Poka's user avatar
  • 3,118
1 vote
1 answer
743 views

Breathing under water

Why can fish breathe under water but land mammals can't? How can fish extract oxygen straight from water but humans can't?
ashpool's user avatar
  • 137
0 votes
2 answers
121 views

Gastric and intestinal gas exchange

A very long time ago, I happened across research into using an oxygenated liquid in the stomach and or intestinal cavity. I wondered what further results came about of that research, and am having ...
Keith Reynolds's user avatar