Natural Absorption

Survival Industry makes use of Father Toast's "Natural Absorption," a mod that adds "flesh wound" damage; this is a row of hearts that instantly heal up once you stop taking damage. This can help you survive situations where you're near death, and you accidentally do something like bump into a cactus.

Additionally, this mod includes an enchantment for armor that expands the size of the absorption bar. Considering the increased challenge from mobs, this can be very useful.

This mod hides the armor bar, but doesn't affect armor's ability to reduce damage.