When danger subsides, your body goes back to normal operations.
We need the body’s stress ("fight or flight") response to get us through tough times. When you sense a threat or danger, your body rises to the challenge by releasing stress hormones, tightening your muscles, making your blood pressure rise and your heart and lungs work harder, and releasing a surge of fat and sugar to give you energy. When danger subsides, your body goes back to normal operations.