| ▲ | rstuart4133 16 hours ago | |
> has nothing to do with CO2 and seemingly everything to do with a lack of oxygen. If you lack oxygen because you can't breathe in, then CO2 will be building up because you can't breathe out. Neither sound like a good explaination for the suffocation response being winded causes, because most people can hold their breath for a least a minute with too much discomfort. It's more likely due to a primitive response to unexpected airway restriction - the same as choking. PS: pigs have the same CO2 response as us, maybe stronger as they can detect C02 at lower concentrations. I find that hard to reconcile with pig abattoirs killing pigs by lowering them into a pit of 90% CO2. N2 would do the same job without the pig realising what is going on, but CO2 is heavier than air so it stays in the pit, making it more economical. | ||