No heating in the middle of a particularly nasty winter can be problematic, too - although it's mostly a matter of comfort, not survival. In most places, with robust shelter and adequate clothing, bedding, and food, it's fairly hard to freeze to death at home (but note that the cold may make some infections or medical conditions worse; you may have to worry about frozen water pipes, too). The situation can become a lot more dire if you are on foot in the middle of nowhere, so truly hardcore, wilderness-minded preppers may have something to ponder about; but hauling a sufficient amount of fuel is typically impractical to begin with, so their best bet would be warm clothing, improvised shelter, and the ability to build a fire. We'll talk about that in the section that deals with camping supplies.
Despite the trauma, I kept going to protests. I felt grimly determined, and as I kept going, I became more desensitized to the chaos. My medic bag evolved into something more suited for treating the effects of police brutality than simply a place to keep extra snacks and water on hand. I learned from other medics how police often target medics and organizers for arrest in order to destabilize and demoralize the entire group, and I grimly prepared for an inevitable attack or arrest.
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