Instinct

Our 'ancestral Instinct', Is badly outdated and has gone crazy
in a society where we have more neurological stressors than
ever before. The fight or flight instinct works off the senses
and triggers adrenaline and other stress hormones, such as
Cortisol, when it feels that danger is imminent. In theory this
seems fine, it prepares us for a life or death battles with
contemporary aggressors. In reality though this is not the
case because our senses are constantly being attacked by
stimuli that 'might' be aggressive but most often are not.
Even the aggressive horn of a car can trigger 'fight or flight',
releasing a cocktail of stress hormones into the blood for a
behavioural release that never occurs.