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An addition to previous answers plus some clarification The term respiration originally meant breathing i.e inhaling and exhaling (See here). It was believed that it is the oxygen and in turn the act of breathing is what lets an organism survive. After substantial research it had been found that, in individual cells it is the ATP production by ...


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There are two uses of the term respiration: physiological respiration and cellular respiration Physiological respiration involves the intake of outside oxygen and its distribution to the tissues of the body. Breathing is a part of physiological respiration and functions to bring oxygen into the lungs and expel carbon dioxide. Cellular respiration is a ...


7

Breathing is a part of respiration but respiration is not a part of breathing. Breathing is a process through which oxygen is taken into the body for use in respiration. This involves physical movement to take oxygen (into the lungs) and also chemical action (haemoglobin-carries oxygen from lungs to blood and carbon dioxide from blood to lungs). But ...


3

To my limited knowledge, I believe respiration is the chemical process of the body converting glucose and oxygen into energy, whereas breathing is the physical process of inhaling oxygen and exhaling carbon dioxide. Breathing is somewhat like an "external" respiration.


2

Nitrogen is much less reactive than oxygen. Indeed, if I haven't totally forgotten my long-ago chemistry courses, most chemical reactions involving N2 are energy-consuming. Thus you get nitrogen compounds produced by lightning, in auto engines, and other places where there's a lot of energy to spare. Oxygen reactions, OTOH, are energy-producing. You ...


0

If walking in the morning is truly more beneficial than walking at a different, it certainly wouldn't be related to atmospheric oxygen content. The oxygen content of the atmosphere fluctuates on the timescale of years, not hours. And keep in mind that when it's morning where you are currently, it's going to be noon somewhere else, and dusk somewhere else.


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I would offer the counter point that this has to do with energy availability. (I'm on my phone so I can't put in references just yet). But there was just a great recent study published in Science (I'll go find it), in which a group looked at plaque deposition as a proxy of overall cardiovascular health of groups of mice exercised before and after food ...


1

I am going to play the devil's advocate here. I don't know if working out within the first three hours of waking is necessarily the best time to do so. In the morning, we have what is called cortisol awakening response which is where the body releases cortisol. Cortisol is a by product of the sympathetic nervous nervous system. Dr.s James E. Muller, ...


1

The paper in question used metronome to aid test subjects control their breathing rate. This seems like a good approach, much better, than asking "please, breath with 0.1Hz frequency". The subjects were asked to remain at rest in a supine position for 10 min, and then to control their respiratory rate with the help of a metronome at different breathing ...


2

Long-term exposure to excessive oxygen will lead to damage in pulmonary tissue. This damage resembles the same damage which is seen in patients with Acute Respiratory Distress Syndrome (ARDS). In these patients surfactant specific proteins are damaged by proteolysis. This proteolysis is caused by the neutrophil elastase enzyme, after a massive influx of ...



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