Why do we get cravings during stress?

When we are stressed, the body releases the hormone cortisol as part of the fight-or-flight response, and one of its effects is to boost appetite, especially for energy-dense foods high in sugar and fat. Evolutionarily this made sense, because stressful situations once meant physical danger that demanded quick energy. Eating sweet or fatty comfort foods also triggers the release of dopamine and other feel-good chemicals in the brain reward circuits, which temporarily dampens feelings of stress. Over time, this can create a habit loop where stress reliably drives us toward snacks. Poor sleep, which often accompanies stress, further disrupts hunger hormones and intensifies cravings.