28/12/2025
Cold temperatures restrict blood flow to hands to conserve core body heat, causing numbness, stiffness, color changes (red/white/blue), tingling, reduced dexterity, and pain, potentially worsening conditions like Raynaud's or arthritis; severe exposure can lead to frostbite, ulcers, or gangrene, highlighting the need for warm clothing like insulated gloves and prompt medical attention for persistent issues.