Why Breathing Doesn’t Mean You’re Safe in a Chokehold

Almost everything people believe about a chokehold is about air. Almost none of it should be.

The word choke makes you picture a blocked windpipe. There are two different things, and the difference is what makes this dangerous.

• An air choke presses on the windpipe. It is painful and slow, and it is the kind that damages the throat.
• A blood choke presses on the arteries at the sides of the neck and does not block the airway.

A person in a blood choke can breathe normally right up to the moment they lose consciousness. That is why people misjudge how fast it is.

Why the brain is so exposed

The brain is about 2% of your body weight and takes about a fifth of your blood supply. It keeps no store of fuel. Everything arrives continuously through four vessels, and two in the front of the neck do most of the work.

Those two arteries run close to the surface. The most protected organ you have is fed through the most exposed part of you.

Why air chokes injure people

The windpipe is held open by rings of cartilage, so blocking it takes real force on the front of the neck. That force is how the structures there are damaged. Trained people avoid it.

Seconds, not minutes

When blood flow is cut off, most people lose consciousness in about five to ten seconds.

It is not gradual. The part of the brain that keeps you awake is very sensitive to supply and goes first. People describe being there and then simply not.

The twitching is not a seizure

Afterwards the arms and legs may stiffen or jerk. Almost everybody calls it a seizure.

The thinking outer layer of the brain switches off first, because it needs the most fuel. Older circuits underneath keep going a little longer and fire on their own. It is a release, not a fit, and it usually lasts a few seconds.

It is also the clearest signal that somebody went too far and must be released at once.

Why the person cannot judge

When the pressure comes off, blood returns and most people wake within seconds. They usually feel fine, and they often insist they were never out.

Memory of the seconds before is not stored. So the person it happened to is the worst judge of whether it happened. The decision belongs to everybody else in the room.

A strong neck does not protect you

A thick neck makes an air choke harder. It does almost nothing against a blood choke, because muscle does not shield those arteries. The biggest person in the room loses consciousness as fast as anybody else.

Does it cause lasting damage?

A single, brief blood choke that is released at once has not been shown to cause lasting harm. Studies of judo and grappling athletes have largely found none.

That is not the same as harmless. Those studies measured short holds released the moment the person went limp. A hold kept on longer is a different thing, and nobody has properly studied what hundreds of chokes across a career add up to.

How deaths happen

Deaths are rare, and the pattern is nearly always the same. The hold stayed on after the person stopped responding.

An unconscious person cannot tap. The twitching can look like resistance to somebody who has never seen it. Movement is not an answer.

There is also a rarer risk. Sensors in the neck can slow the heart when pressed, and in a few people that response is exaggerated. There is no way to know in advance.

Outside sport

Everything above assumes two people who agreed, and one of them letting go.

Outside that, pressure on the neck is one of the most serious things that can happen to a person. Somebody can be strangled, stay conscious, have no marks the next day, and still have an injury inside the neck. A clot can form days later.

A person who has been strangled by a partner is at much higher risk of being killed by that partner later. If this is happening to you, it is a medical emergency. Tell someone, even with no bruise and no blackout.

The rules in a gym

• Tap early. It costs nothing. Nobody remembers who tapped.
• Let go when they tap, and let go if they stop moving. Do not check first.
• Anyone who has been unconscious stops for the day. Not the next round. The day.

The short answer

It is blood, not air, and the brain has no reserve. If you have been choked unconscious and something feels different afterwards, such as a headache that stays or a growing gap in memory, see a doctor.