Help Shallow water blackout

[Aeselle]

Has anyone succeeded in using the shallow water blackout method to ctb? Would doing it in a bathtub be fine?

I was thinking about other methods such as using SN but I just don't have a way to find sources and it would be difficult for me to obtain it without suspicion from my parents. Any help regarding this would be very appreciated !

 

[AmericanMary]

I looked into this method as something quick, cheap, and assessable. Have you read through the mega thread on it?

Ideally, it could work wonderfully. However it seems like a lot of people have an issue with making themselves pass out from the breathing technique. SI can also play a really big factor in this.

In theory, it should be quick & painless. But the people we are comparing attempts to are accidental drownings from pro athletes.

There have been successes on this website tho.

 

[Aeselle]

I looked into this method as something quick, cheap, and assessable. Have you read through the mega thread on it?

Ideally, it could work wonderfully. However it seems like a lot of people have an issue with making themselves pass out from the breathing technique. SI can also play a really big factor in this.

In theory, it should be quick & painless. But the people we are comparing attempts to are accidental drownings from pro athletes.

There have been successes on this website tho. HopefulSleep CTB this way.

I've tried the directions and they seem simple but the megathread mentions how you blackout long before you need to breathe, I still have the urge to let go while trying it out. Would it be easier to hold your breath and faint underwater?

 

[_Gollum_]

I've tried the directions and they seem simple but the megathread mentions how you blackout long before you need to breathe, I still have the urge to let go while trying it out. Would it be easier to hold your breath and faint underwater?

That likely means that you didn't hyperventilate enough to reduce your CO2 levels.

 

[AmericanMary]

I've tried the directions and they seem simple but the megathread mentions how you blackout long before you need to breathe, I still have the urge to let go while trying it out. Would it be easier to hold your breath and faint underwater?

No idea.

 

[Aeselle]

That likely means that you didn't hyperventilate enough to reduce your CO2 levels.

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O I see ! How long would you typically hyperventilate for to reduce your CO2 levels enough to faint?

 

[_Gollum_]

O I see ! How long would you typically hyperventilate for to reduce your CO2 levels enough to faint?

That's the golden question ;) I don't think there's one answer, I think it would vary by individual, so you would just have to experiment with it. I think I came close with 2 minutes 30 seconds hyperventilation + 2 minutes breath hold but then I freaked out and started to breathe again when I started feeling the blackout coming on. I have no idea how close I actually was to it though.

 

[Aeselle]

That's the golden question ;) I don't think there's one answer, I think it would vary by individual, so you would just have to experiment with it. I think I came close with 2 minutes 30 seconds hyperventilation + 2 minutes breath hold but then I freaked out and started to breathe again when I started feeling the blackout coming on. I have no idea how close I actually was to it though.

So I've been trying to practice to be able to faint on will and I just suddenly got this weird feeling where I feel like I might die soon like my visions all blurry, something feels like it's vibrating in my head but it's not uncomfortable and I just feel like if I let go, I might just die but maybe it's just an upcoming panic attack but I honestly don't know. Mind you I was practicing around 3 hours ago so why am I getting this feeling now? Do you think if I just let go and let it take me, I would be able to just ctb?

 

[_Gollum_]

So I've been trying to practice to be able to faint on will and I just suddenly got this weird feeling where I feel like I might die soon like my visions all blurry, something feels like it's vibrating in my head but it's not uncomfortable and I just feel like if I let go, I might just die but maybe it's just an upcoming panic attack but I honestly don't know. Mind you I was practicing around 3 hours ago so why am I getting this feeling now? Do you think if I just let go and let it take me, I would be able to just ctb?

If you weren't underwater when you fainted, then no, you would just start breathing again automatically.

 

[Aeselle]

If you weren't underwater when you fainted, then no, you would just start breathing again automatically.

Is it normal to feel like this after practicing hours before?

 

[_Gollum_]

Is it normal to feel like this after practicing hours before?

I have never experienced this and am not well-placed to advise you medically. Could be a panic attack, but you may want to seek medical attention.

I'd definitely give the fainting practice a rest, you shouldn't try it in large doses.

 

[Aeselle]

I have never experienced this and am not well-placed to advise you medically. Could be a panic attack, but you may want to seek medical attention.

I'd definitely give the fainting practice a rest, you shouldn't try it in large doses.

I see, I'll try giving it a break.

Thanks for all the help, I really appreciate it

 

[Old]

I'll tell you the answer, and you won't like it. This phenomenon (SWB) happens almost exclusively to freedivers. This is because their bodies have high tolerance to co2. You need several weeks of practice to increase your co2 tolerance. That's why even half a minute of hyperventilation is dangerous for them. The average untrained person could hyperventilate for 20 minutes straight (I've done it) and still not pass out from holding their breath.

This method isn't for you if you want to do it now or next week or next month.