When the cold sets in, your body reacts instinctively. Muscles tighten, circulation slows, and your nervous system stays alert, ready to protect you from the chill. This natural response, often called survival mode, helps you endure harsh conditions but can leave you feeling tense and fatigued. Infrared saunas offer a gentle, effective way to counteract these effects by warming your body from within, improving circulation, easing muscle tension, and signaling safety to your n