The science behind why we crave soup when it’s chilly is multifaceted, involving physiological, psychological, and sensory factors. When temperatures drop, our bodies work harder to maintain a stable internal temperature, a process known as thermoregulation. This increased effort burns more energy, signaling a need for calorie-dense foods to replenish our energy stores. Soup, often packed with carbohydrates, proteins, and fats, serves as an efficient and comforting way to meet this demand.