Fight, flight or freeze

When an individual experiences the “fight or flight” response, their brain activates the sympathetic nervous system which releases stress hormones such as adrenaline and cortisol. This leads to an increase in heart rate, blood pressure, and respiration, preparing the body for a physical response to perceived danger.

The “freeze” response can occur when the individual feels overwhelmed and is unable to fight or flee, leading to temporary paralysis. In this state, the brain may also release stress hormones and decrease activity in the regions responsible for voluntary movement. This response is thought to be a survival mechanism in animals, allowing them to play dead and avoid being noticed by predators.