Supply chain and food production/preservation would be the biggest issue. Not having antibiotics would have a huge impact. I find it interesting that survivalist literature goes into so much detail on so many topics never seems to cover medical stuff. What do you do for birth control after the apocalypse? How can you make an antibiotic? How can you make an anesthetic? I’ve seen YouTube videos for making chloroform but never details how to use it.

> I find it interesting that survivalist literature goes into so much detail on so many topics never seems to cover medical stuff. What do you do for birth control after the apocalypse? How can you make an antibiotic? How can you make an anesthetic?

I mean, you don't? One dude, a family, or even a small community cannot hope replicate all the stuff that comes from modern supply chains. Surviving a civilization-ending catastrophe would basically mean navigating the glide path down to a poor subsistence lifestyle that lacks a huge amount of technology we take for granted. People got by without that stuff for pretty much all of human history.

The best survivalist could probably do is compile traditional/herbal remedies that are at least somewhat effective, but there would still be huge gaps.

So

birth control: abstinence, keeping an unplanned baby, infanticide, or some herbal abortifacient.

antibiotics: hope you can fight off that infection or we'll have to amputate

anesthetic: alcohol or a stick in the mouth

Reflecting on this makes me really appreciate living in the 21st century.

Antibiotics, anesthetics, birth control?

Lucky if you stashed or found some leftovers. We'd be back to some available herbal remedies.

And birth control? You'll want the opposite if you want your clan to survive. Without antibiotics & other modern medicine, or even soaps (anyone in your group know how to make that?), you'll be back to having a dozen children and being lucky if one or two survive to adulthood.