Ancestral threats like snakes and heights trigger more intense physiological fear responses (sweating) than modern threats like firearms and disease.

A new study suggests that passively observing strangers engage in affectionate social interactions triggers a physiological response often associated with stress or alertness rather than relaxation.

A new study has shown, for the first time, what many of us have long felt: that observing grammar mistakes can trigger negative physical reactions, including one that stems from the part of our ...

Every living creature has a survival response to threats, including humans. However, only humans possess language and consciousness, which create a unique set of threats. The problem is that ...