How the HELL does something work so FAST!!???
It’s got to reach EVERY blood cell almost instantly!
I do not understand instant death from ingestion.
Gunshot, yes.
Hard to live without a brain.
If you put a plastic bag over your head, you’re dead in a couple of minutes because you use up the oxygen in your blood. Cyanide works like carbon monoxide, irreversibly binding to hemoglobin so it can’t carry oxygen. As to speed.. I’m not an expert on circulation Dynamics, but blood circulates in a matter of seconds or tens of seconds.