The answer to this question depends on a few factors, including the individual's age, health, and oxygen levels. Generally speaking, it typically takes anywhere from 10 to 20 seconds without oxygen before a person loses consciousness. After this time, a person is considered to be clinically dead and needs medical attention.
Age
The time it takes to go unconscious from not breathing can vary widely depending on the person's age. Generally speaking, younger individuals tend to be able to go longer without oxygen before they lose consciousness. For example, infants and young children may be able to go for up to a minute without oxygen before they lose consciousness. Older adults may only be able to go for a few seconds before they lose consciousness.
Health
The individual's overall health can also affect how long it takes to go unconscious from not breathing. People with certain medical conditions, such as asthma, may be able to go longer without oxygen before they lose consciousness. People with poor cardiovascular health may go unconscious quicker than those who are in good health.
Oxygen Levels
The amount of oxygen in the environment can also affect how long it takes to go unconscious from not breathing. If the environment has a higher concentration of oxygen, it may take longer to go unconscious. Conversely, if the environment has a lower concentration of oxygen, it may take less time to go unconscious.
In general, it typically takes anywhere from 10 to 20 seconds without oxygen before a person loses consciousness. After this time, a person is considered to be clinically dead and needs medical attention. It is important to note that the time it takes to go unconscious can vary based on the individual's age, health, and oxygen levels.