Winter's cold can increase hunger due to physiological and psychological factors. The body burns more calories to maintain core temperature, signaling a need for calorie-dense foods. Reduced sunlight and increased melatonin can also influence appetite. While the body's energy demand slightly rises, psychological factors like the desire for comfort often drive cravings more than actual needs, potentially leading to overeating and weight gain. Mindful eating, hydration, and focusing on warm, fiber-rich meals are recommended strategies.