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There are a lot of variables, but 4 minutes is the usual guideline. Blood carries oxygen, and blood is pumped by the heart. Brain damage occurs after 4 minutes without fresh oxygen to the brain.

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13y ago
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15y ago

Brain damage starts after 10 minutes, after that you risk serious permanent brain damage. All brain surgerys that require stopping the heart are done in 10 minutes or less.

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16y ago

after about 4 minutes unless his body temp is really cold then the rate of breakdown is reduced

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10y ago

Once a heart stops it takes up to 6 minutes before permanent brain damage can occur. This is because the brain has been starved for fresh oxygenated blood and was not being nourished.

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Q: Once heart stops how long is it until brain damage occurs?
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Brain damage is likely if intervention occurs 2-4 minutes after the heart stops?

2-4 minutes


When you are brain dead how long does the heart stops?

Your Brain will function for at least 6 to 7 minutes after your heart has stopped.


What happens if the brain stops sending signals to the heart?

If the brain stops sending signals to the heart, the heart would not receive instructions to beat, leading to cardiac arrest and ultimately stopping blood flow to the body's organs. This lack of circulation can result in organ damage and ultimately death if not promptly treated.


Can people still live for a couple of seconds after their heart stops beating?

People can live for minutes after their heart stops. The risks of severe and permanent brain and tissue damage increase the longer the heart remains stopped, but it can be successfully retsarted if the right treatment is used.


Once breathing stops how long is it until brain damage occurs?

It is roughly around 3 minutes and it depends on the person (i.e. baby, adult...etc.). Brain damage is irreversible no matter how long you are without oxygen. Once brain damage begins you can never regain those cells that have died.


Why people are declared dead when the brain stops functioning even when the heart is still beating?

When the brain stops functioning, vital bodily functions controlled by the brain cease, leading to irreversible damage. The brain requires a constant supply of oxygen and nutrients, which are delivered through blood flow controlled by the heart. Despite the heart continuing to beat, without brain function, the body cannot sustain life.


Will you survive even after your heart stopping and you brain stops working?

No, the heart is critical for shuttling oxygen and nutrients to the body tissues and clinically, death occurs when the brain is dead, i.e. no more electrical activity. Both are considered vital organs.


What occurs when an area of the heart muscle stops working and dies?

A heart attack.


How does a brain cause a stroke?

it stops the blood flow to your brain either killing you or giving you serious brain damage


What are the dangers of inhalers?

the fumes from toxic chemicals can kill you fast (heart stops, suffocation accidents) or slowly (brain damage). they can also cause permanent injuries such as nerve or kidney damage, permanent paralysis or shaking, brain damage and loss of bladder control (AKA YOUR URINATING PROCESSER)


How long can a person live without a heartbeat?

If a person's heart stops beating - and nothing is done to try to restart it - they will suffer irreparable brain damage - and possibly death.


If your brain stops will your heart stop?

AnswerYes. Your brain controls everything, including the heart, so if the brain stops, then you will forget how to breath.AnswerIf your brain completely stops functions, your heart will stop.However, in many cases the higher functions of the brain fail while the basic housekeeping functions continue to work. In that case you may be in a vegetative state, unable to think or recognize your surroundings, but your brain still tells your heart to beat and your lungs to breath.Comment on my new answerOh yeah, I agree.