defense reaction

• Reação fisiológica ou psicológica automática a uma ameaça percebida, geralmente envolvendo o mecanismo de luta ou fuga ou comportamento defensivo.

An automatic physiological or psychological response to a perceived threat, often involving the fight-or-flight mechanism or protective behaviors.

1. Biological immune responseB2formal

   The body's automatic response to protect itself against harmful pathogens, injuries, or threats.

   Reação de defesa

   • A fever is a common defense reaction to an infection.
   • The immune system triggers a defense reaction when it detects a virus.
   • Allergies are an overactive defense reaction to harmless substances.