The "fight or flight response" is a natural reaction that happens in our bodies when we face danger, stress, or a scary situation. It's like a built-in alarm system that helps us decide whether to fight the danger or run away to stay safe.
This response causes changes in our body, like making our heart beat faster, helping us breathe quicker, and giving us more energy. These changes help us react quickly in emergencies. It's part of how humans and animals have survived for thousands of years, as it gets the body ready to handle anything that seems like a threat.
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