I swallowed something wrong and coughed it up, and it got me thinking how easily I could be dead if I had no cough reflex.
So that’s my vote. OTOH, at this age I can cough voluntarily if I swallow wrong, but I might not have lived through my infancy if I hadn’t been able to reflexively.
So what else would probably kill us if we didn’t reflexively respond to it?
Sleep paralysis is pretty important too, isn’t it? People with faulty sleep-paralysis…thingies…end up sleep walking on the freeway and being run over by trucks.
Apologies for this misstated question. I was in fact attempting to ask for the reflexes that could save our lives, not the stimuli that evoke them.
Breathing is not, IMO, a reflex action. I would also say that “fight or flight” probably isn’t, but the rush of adrenaline and whatever other chemicals shoot into us in response to a threat are. Yet, this response doesn’t in itself save our lives, AFAIK, though it gives us extra resources that we could use to save our lives.