THE EVOLUTION OF THROWING UP
I wonder how humans made it this far? What did they know what to eat and which foods were toxic? Somebody ate poison ivy and had problems so I suppose the rest of the humans stayed away from eating poison ivy. Did they try eating tree bark? How did they know they wouldn't be poisoned by the plants they found?
They didn't. It was all trial and error. Someone got sick, threw up, or died. As un-evolved as we were at that time we had enough sense to know that if some member of the tribe downed a plant and died, maybe the rest of us shouldn't have it for dinner.
We evolved from apes that lived for the most part in the trees. Living in tree branches protected us from most predators. One day a brave ape came down to the ground, stood up on its hind legs to get a good look around, and a few others followed. I know this is a simplified version of evolution, but you get the point.
As apes we lived on tree fruit, bugs, and other tasty, non lethal items. When did we first eat meat? How did we know that cooking meat over an open fire was a hell of a lot better than eating it raw and that made it much more palatable?
We probably found dead animals and ate what was left over after carnivores had their fill. We threw up again and died from rotten meat. When we finally figured out that the meat needed to be fresh and not smelly, we concocted a way to get fresh meat. We sharpened sticks into spears, or drove our prey off cliffs, then hiked down to eat the remains or cart it back to our caves.
Early man also learned how to use fire and smoke to keep mosquitos away. They were always trying dried leaves and different woods and some of those combinations worked as mosquito repellants. After all, mosquitos have been biting things for 170 million years.
Thinking about this stuff rattles my brain in the same way it rattled the brains of my hairy ancestors. Now we have to figure out what astronauts are going to eat and drink on their way to explore other planets. Where will they store all the drinking water? Are they going to load up on pork and beans and jars of peanut butter? And what about Vitamin C? Maybe they'll just take pills? It must have sucked having a headache, a toothache, and being depressed in man's early days. CVS wasn't open 24/7 and depressed people probably got slapped on the side of the head and had a sore tooth poked out of their gums with a stick and a rock. Some patients probably died from infection but after all, evolution is tough. You throw up a lot too.