Most of us know about the “fight or flight” response, the body’s built-in survival instinct. But that framework leaves out two other common ways the nervous system reacts to stress. Indeed, ...

Being cut off in traffic, giving a presentation or missing a meal can all trigger a suite of physiological changes that allow the body to react swiftly to stress or starvation. Critical to this "fight ...

The sympathetic nervous system, which helps your heart and other vital organs function all the time, increases activity in response to danger or stress, preparing the body for extra demands. Stress is ...

The human stress response represents a sophisticated biological system designed to help individuals survive immediate threats through rapid physiological changes that enhance performance and ...

The experience of anxiety is normal and a part of all human life. It provides useful information that helps prepare us for and protect us from harm or threat. Stress, fear, and danger trigger a ...

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 ...