What happens to your organs when you are scared and what happens to your cells when you are scared please include running sleeping too?

When you are scared, your body activates the fight-or-flight response, leading to the release of stress hormones like adrenaline and cortisol. This causes your heart rate to increase, blood vessels to constrict, and your lungs to expand, preparing your organs for quick action. At the cellular level, these hormones prompt energy mobilization, enhancing glucose availability and increasing oxygen consumption, which can boost performance during high-stress situations like running. Conversely, during sleep, the body shifts into recovery mode, where stress hormone levels drop, allowing organs and cells to repair and rejuvenate.