Your liver dumps fat and sugar into your bloodstream for fuel. Your breathing deepens so that more oxygen is delivered to your heart. And your heart rate speeds up to deliver the oxygen, fat, and sugar to your muscles and brain. Stress hormones like adrenaline and cortisol help your muscles and brain take in and use that energy more efficiently. In all these ways, your stress response gets you ready to face whatever challenges lie in front of you.
Your bodies reaction to stress
