Plastic bag method that might actually be great

[BlissfulEnigma]

So, not long ago I posted about a potential method which involves hyperventilating followed by taping your mouth and nose shut. The hyperventilation part SHOULD lower CO2 enough to experience a hypoxic blackout, but I realized that 1. The tape might move around and let air in due to unconscious conclusions, and 2. I don't have strong tape around anyways. But what's it you used a plastic bag instead? So you hyperventilate until your CO2 levels are extremely low, then you place the bag over your head and tighten it as much as possible. It might be bit more complex than that, but how would this not be effective assuming the bag is airtight and for the most part airless?

 

[muu]

always poses the risk of brain damage if found, and it's hard to guarantee it would kill

 

[hell toupee]

So, not long ago I posted about a potential method which involves hyperventilating followed by taping your mouth and nose shut. The hyperventilation part SHOULD lower CO2 enough to experience a hypoxic blackout, but I realized that 1. The tape might move around and let air in due to unconscious conclusions, and 2. I don't have strong tape around anyways. But what's it you used a plastic bag instead? So you hyperventilate until your CO2 levels are extremely low, then you place the bag over your head and tighten it as much as possible. It might be bit more complex than that, but how would this not be effective assuming the bag is airtight and for the most part airless?

I don't want to rain on your parade, but this is almost certainly not going to work. Passing out from hyperventilation, or holding your breath for a long time, only lasts for a few seconds. You will most certainly regain consciousness and begin to struggle - especially if you use a plastic bag. Once respiration resumes, the bag is going to fill with slowly rising levels of co2, which in turn is going to activate your body's hypercapnic response. Meaning you will tear the bag off of your head unless you have an extreme amount of willpower.

You would be better off introducing some type of asphyxiant to the plastic bag, which will induce unconsciousness and therefore bypass the hypercapnia.

 

[BlissfulEnigma]

I don't want to rain on your parade, but this is almost certainly not going to work. Passing out from hyperventilation, or holding your breath for a long time, only lasts for a few seconds. You will most certainly regain consciousness and begin to struggle - especially if you use a plastic bag. Once respiration resumes, the bag is going to fill with slowly rising levels of co2, which in turn is going to activate your body's hypercapnic response. Meaning you will tear the bag off of your head unless you have an extreme amount of willpower.

You would be better off introducing some type of asphyxiant to the plastic bag, which will induce unconsciousness and therefore bypass the hypercapnia.

Well I'd appreciate if you could elaborate. When you make the claim that unconsciousness lasts just a few seconds, can you explain how that happens? Because to me it wouldn't make sense for your oxygen to reach such low levels and then suddenly rise back up after a "few seconds". And again, the bag is ideally so tight that there is a negligible amount of air that you could theoretically breathe in. Maybe you're just criticizing the use of hyperventilation alone to cause unconsciousness , but what I'm saying is that if you also utilize a tight plastic bag around your head (AND very crucially, holding your breath as long as you can as soon the hyperventilation is done), then I don't see why you go from consciousness to unconscious and THEN back to consciousness.


Edit: looking back, I really should've added that it is CRUCIAL that right after you hyperventilate, you must exhale all the air out (or as much as possible) and HOLD it like that while securing/tightening the bag over your head. Obviously if you just hyperventilate and tighten a bag over your head, you will breathe in more oxygen as a result and I would not trust that.