What happens to the body during a "fight or flight" response? US updates travel warnings for two countries—'Keep a low profile' Over a month’s-worth of rain could fall in the Desert Southwest as ...

Chronic tinnitus may increase stress levels by keeping the body that much closer to a fight-or-flight response to sound, a new study suggests. By carefully studying the facial expressions of people ...

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Feeling like you're in a constant state of alert? It's possible you might be stuck in fight-or-flight mode. This ancient survival mechanism helped our ancestors dodge predators, but in today's world, ...

In a paper published in the journal Cell, researchers documented how this body-wide response in axolotl salamanders is triggered by the sympathetic nervous system—the iconic "fight or flight" network.