Lack of oxygen to the brain.
the point at which a person cannot hold breath further for a second is termed as the breaking point in breath holding.
If a person has alcohol on his breath, they were probably drinking therefore they would most likely have an altered state of consciousness.
high levels of ketone and glucose can cause loss of consciousness in dka
One can learn more about breath holding on various various websites like FourHourWorkWeek. One could take swimming classes and ask tips and tricks for breath holding in there.
An involuntary reflex. When a person holds his or her breath and manages to continue holding it, eventually the individual will lose consciousness due to the lack of oxygen being supplied to the brain. At this point in time, the person can no longer continue to force the body to suffocate itself, and the body will then begin to breathe again while the person is unconscious. ======== Actually, it's not the lack of oxygen, it's the build up of carbon dioxide that triggers the autonomic nervous system to force you to breathe.
Breath
the Guinness world record for breath holding is 22 minutes held by Stig Severinsen. It is called static Apnoea which must be conducted under water. The person uses O2 to get the body saturated before the attempt
There are a wide range of types of seizures and how they affect people. Some seizures do result in people losing consciousness, so it can happen. However, the periods of unconsciousness can be very short. Many seizures do not result in a loss of consciousness at all.
A person who is fasting may notice that their breath will begin to smell fruity. This is because the body is going into ketosis. This is also common amongst those who have diabetes.
The person's lungs are not moving air well in emphysema. Also irritants cause increased production of phlegm, which can reduce air movement, hence, diminished breath sounds.
Stress and anxiety lead to rapid breathing, and when the level of carbon dioxide in the blood is reduced, it can lead to dizziness and further panic. Any underlying cause should be treated, and doctors may recommend psychological therapy and/or breathing training if this persists. (see related link)
Divided consciousness theory of hypnosis states that the consciousness is separated during hypnosis. This means that the person being hypnotized is both aware and unaware of what is happening because there is a split in the consciousness.