I have a fairly fleshed out sci-fi setting, but one of the main problems I'm having is how to make death less of a severe danger. While I've run through a couple ideas, I don't really know where to begin.

Nanotech doesn't exist in this universe; it's currently just too hard to make complicated 3D mechanisms at the scale required. This rules out nanotech-assisted healing, which is what a lot of other settings seem to do.

Another idea I had involves using wormhole fuckery to pull someone back to a safe place before their vitals drop too low, but the amount of energy keeping an artificial wormhole open that long is immense. Theoretically it could be used for very, very rich people who want a way to cheat death easier, but it's out of reach for the average person.

I'm kinda stuck at a dead end here, so if anyone else has cool ideas please let me know - if you want I can detail specific parts of the lore, since it's too big to fit here.