Proactive Physio

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.

Crackling sounds in joints, known as crepitus, are usually harmless and caused by gas bubbles popping in synovial fluid, tendons or ligaments snapping back into place, or even roughened cartilage rubbing, common in knees and knuckles. While often painless and normal, a crunchy, painful sound can signal osteoarthritis, torn cartilage, or inflammation, requiring a doctor's visit if accompanied by swelling or pain.