The hormones your body releases when you're stressed get you ready to meet the challenge or demand in your environment.
Stress is your body's response to a challenging or demanding situation. When you feel stressed, your body releases certain hormones. Your hormones are chemical signals your body uses to tell your body systems what to do. The hormones your body releases when you're stressed get you ready to meet the challenge or demand in your environment. During the stress response, your body gets ready to flee or fight by increasing your heart rate, breathing rate, and blood pressure.