Help Best SWB method?

[VeryLonelyBread]

What is the best method for shallow water blackout? Current idea is hyperventilate kneeling in the bath, put face in water, hold breath, hopefully passout and ctb. Does anyone have any tips on how to best hyperventilate or anything else to say idk

 

[certified_idiot]

I can't find any real guides bc everyone's talking about how to prevent hyperventilation. I think the best method is to breath quickly and shallowly for a few minutes (I think at least 2 should work) beforehand. The biggest problem with SWB is that you can get yourself out of the water easily, but with enough determination and hyperventilation it can work. You'll probably have at least some anxiety before attempting, but this can actually help with hyperventilation. You may want to practive a bit before your real attempt, because it's quite scary the first time you try, but you can stay down for longer the more you get used to it.

 

[VeryLonelyBread]

I can't find any real guides bc everyone's talking about how to prevent hyperventilation. I think the best method is to breath quickly and shallowly for a few minutes (I think at least 2 should work) beforehand. The biggest problem with SWB is that you can get yourself out of the water easily, but with enough determination and hyperventilation it can work. You'll probably have at least some anxiety before attempting, but this can actually help with hyperventilation. You may want to practive a bit before your real attempt, because it's quite scary the first time you try, but you can stay down for longer the more you get used to it.

Thank youuuu :3

 

[Intoxicated]

I think the best method is to breath quickly and shallowly for a few minutes (I think at least 2 should work) beforehand.

Deep breaths should be more efficient at removing carbon dioxide from the lungs. For example, when 1/2 (50%) of initially present CO₂ is replaced by each breath, the remaining % of CO₂ from its initial level (without counting CO₂ coming to the lungs from the blood) would be

Number of breaths	Remaining % of CO₂
1	50
2	25
3	12.5
4	6.25
5	3.125

When each breath removes only 1/10 (10%) of CO₂, the remaining % of CO₂ from its initial level (without counting CO₂ coming to the lungs from the blood) changes as follows

Number of breaths	Remaining % of CO₂
1	90
2	81
3	72.9
4	65.61
5	59.049
6	53.1441
7	47.82969
8	43.046721
9	38.7420489
10	34.86784401
11	31.381059609
12	28.2429536481
13	25.41865828329
14	22.876792454961
15	20.5891132094649
16	18.53020188851841
17	16.677181699666569
18	15.0094635296999121
19	13.50851717672992089
20	12.157665459056928801

In order to produce the same effect, the number of shallow breaths with the tidal volume of 10% should be about log(1 - 1/2) / log(1 - 1/10) ≈ 6.6 times greater in average than the number of deeper breaths with the tidal volume of 50% within the same time interval (keeping in mind that we need to remove CO₂ coming from the blood too).

 

[VeryLonelyBread]

Deep breaths should be more efficient at removing carbon dioxide from the lungs. For example, when 1/2 (50%) of initially present CO₂ is replaced by each breath, the remaining % of CO₂ (without counting CO₂ coming to the lungs from the blood) would be

Number of breaths	Remaining % of CO₂
1	50
2	25
3	12.5
4	6.25
5	3.125

When each breath removes only 1/10 (10%) of CO₂, the remaining % of CO₂ (without counting CO₂ coming to the lungs from the blood) changes as follows

Number of breaths	Remaining % of CO₂
1	90
2	81
3	72.9
4	65.61
5	59.049
6	53.1441
7	47.82969
8	43.046721
9	38.7420489
10	34.86784401
11	31.381059609
12	28.2429536481
13	25.41865828329
14	22.876792454961
15	20.5891132094649
16	18.53020188851841
17	16.677181699666569
18	15.0094635296999121
19	13.50851717672992089
20	12.157665459056928801

In order to produce the same effect, the number of shallow breaths with the tidal volume of 10% should be about log(1 - 1/2) / log(1 - 1/10) ≈ 6.6 times greater in average than the number of deeper breaths with the tidal volume of 50% within the same time interval (keeping in mind that we need to remove CO₂ coming from the blood too).

So quick deep breaths not quick shallow ones?

 

[Intoxicated]

So quick deep breaths not quick shallow ones?

Very quick deep breaths are probably counterproductive for achieving the smallest CO₂ levels in the blood, because high load increases the rate at which the body produces CO₂. 0.5 deep breaths per second (1 deep breath per 2 seconds) seems to be an optimal rate based on my experience.