Has anyone had progress with shallow water blackout SWB?

[Huggs]

This method seems too easy and way too good to be true. Wondering if anyone has managed to pass out. If so could you describe how?

 

[patpat]

I've never seen this one talked about, I too would like to know

 

[lebrodude]

I'm sure a few users here have tried and failed this method, I don't think it's that easy to pull off unfortunately.

 

[lachrymost]

@HopefulSleep recently tried hard to get this method to work without success.

 

[drearybreadd]

the people who claim this as an easy method seem to misunderstand how it works. SWB happens very quickly from hyperventilation. Your CO2 levels become so low your blood pH changes, causing blood vessels to narrow and decreasing blood flow to the brain starving it of oxygen and simultaneously suppressing the instinct to breathe. Most cases are accidental for a very good reason, because they are done by professionals or people who have no idea what they're doing. You can induce this effect by hyperventilating while squatting, quickly standing and holding your breath. This works well because of the quick change in blood pressure when standing that your narrowed blood vessels cannot keep up with. It happens right away, not after holding your breath for a long time. The thing is, although at first you won't feel a need to breathe, you'll know you failed if you don't lose consciousness right away. All that oxygen you just hyperventilated is now being converted into CO2 and will make you want to breathe eventually as your CO2 levels rise. If you do not lose consciousness right away then you either didn't hyperventilate deep enough or fast enough to disturb the pH balance in your blood. This is difficult when you are not in good shape, as swimmers this happens to will typically go from a resting state to intense physical exertion which gives the effect of standing up, while an out of shape person will have already raised their blood pressure while hyperventilating and does not start out at rest. ik I wrote a lot but also take this with a grain of salt, but I would suggest choosing a different method.

 

[HD72]

@HopefulSleep recently tried hard to get this method to work without success.

His name is crossed off. I wonder if he succeeded. Anyway I hope he found peace.

 

[lachrymost]

His name is crossed off. I wonder if he succeeded. Anyway I hope he found peace.

He used SN in the end. His goodbye thread is pretty scary though, as the last we hear is that he vomited. Fingers crossed he's not suffering anymore.

 

[Dying Knight]

This method seems too easy and way too good to be true. Wondering if anyone has managed to pass out. If so could you describe how?

I can describe a bit different experience. When I held my breath after a hyperventilation, I still had a desire to breathe, but I could resist long enough for reaching the state when the need to breathe started weaken and I was about to lose consciousness. When you feel how your need to breathe increases, you may think that it will increase more and more by time, so eventually you will have to give up anyway, but this impression is just an illusion. There is a maximal peak of this urge to breathe. If you manage to pass through this peak, the further continuation of the procedure will be relatively easy.

 

[MatthieuFrederickW]

I can describe a bit different experience. When I held my breath after a hyperventilation, I still had a desire to breathe, but I could resist long enough for reaching the state when the need to breathe started weaken and I was about to lose consciousness. When you feel how your need to breath increases, you may think that it will increase more and more by time, so eventually you will have to give up anyway, but this impression is just an illusion. There is a maximal peak of this urge to breathe. If you manage to pass though this peak, the further continuation of the procedure will be relatively easy.

Huh that's interesting I've never heard of anything like this before. So after a prolonged breath hold after hyperventilating the hyper panic alarm started with the urge to breath, but how long this panic response lasted before it dissipated or went away again? I'm kinda curious if anyone else has experienced something similar like this. I wonder if that's how those other people, in those articles you sent me, who succeeded with a bag over their head without taking anything beforehand did it?

Huh that's interesting I've never heard of anything like this before. So after a prolonged breath hold after hyperventilating the hyper panic alarm started with the urge to breath, but how long this panic response lasted before it dissipated or went away again? I'm kinda curious if anyone else has experienced something similar like this. I wonder if that's how those other people, in those articles you sent me, who succeeded with a bag over their head without taking anything beforehand did it?

And I wonder does the hypercapnic panic response acts differently with gradual reduction of oxygen in the air while still breathing with a bag over head

 

[Dying Knight]

Huh that's interesting I've never heard of anything like this before. So after a prolonged breath hold after hyperventilating the hyper panic alarm started with the urge to breath, but how long this panic response lasted before it dissipated or went away again?

I did those experiments with breath holds about 25 years ago, so my memories may be imprecise. As far as I remember, the peak of the urge to breath was felt somewhere between 100 and 180 seconds after the last breath, then it started to fade out. At 210 - 220 seconds it was weak already. I also remember that I pronounced the number of passed seconds in my mind, so my attention was probably distracted from the suffocation in some degree. Additionally, I artificially induced some anger in order to increase my willingness to resist against the desire to breathe.

And I wonder does the hypercapnic panic response acts differently with gradual reduction of oxygen in the air while still breathing with a bag over head

That's indeed a very interesting question. But since trial experiments with a bag are too dangerous, I wouldn't ever do them. When I decide that I don't want to be living anymore, my first attempt will be non-trial, that is, with the intent to actually end the life, not just reveal some information.

 

[MatthieuFrederickW]

I did those experiments with breath holds about 25 years ago, so my memories may be imprecise. As far as I remember, the peak of the urge to breath was felt somewhere between 100 and 180 seconds after the last breath, then it started to fade out. At 210 - 220 seconds it was weak already. I also remember that I pronounced the number of passed seconds in my mind, so my attention was probably distracted from the suffocation in some degree. Additionally, I artificially induced some anger in order to increase my willingness to resist against the desire to breathe.

That's indeed a very interesting question. But since trial experiments with a bag are too dangerous, I wouldn't ever do them. When I decide that I don't want to be living anymore, my first attempt will be non-trial, that is, with the intent to actually end the life, not just reveal some information.

That's an interesting phenomenon. I always just assumed the panic response just gets more and more intense the longer you're not breathing until eventual loss of consciousness. I'm definitely going to try a long hyperventilation, then breath hold for as long as possible trying to push past the panic response, just to see what happens. Thanks for responding. Very helpful.

 

[soleil]

Bump..

Curious if anyone has had a good try at this and can share failed experience.

 

[HD72]

That's an interesting phenomenon. I always just assumed the panic response just gets more and more intense the longer you're not breathing until eventual loss of consciousness. I'm definitely going to try a long hyperventilation, then breath hold for as long as possible trying to push past the panic response, just to see what happens. Thanks for responding. Very helpful.

Please keep us posted as long as you can.