The farthest or outermost point of something, or a person's limbs like arms and legs; also means an extreme or severe situation.
From Latin 'extremitas' (from 'extremus' meaning 'outermost'). The word has been used in English since the 1300s with meanings ranging from physical endpoints to abstract extreme situations.
Your extremities (hands and feet) are the first places your body shuts down blood flow when you're cold, which is why frostbite happens there first. It's a survival strategy that priorities keeping your core organs warm!
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