The physical and emotional response to events that threaten or challenge us is called fear fight or flight stress psychosis

The correct answer is stress

Stress refers to responses in our body and emotional state when we are faced with stressors ( events that threaten or challenge us). Some physical stress responses include: a racing heart, sweating, rapid breathing, dilated pupils, etc. Whereas, some emotional stress responses include feeling of fear, anxiety, worry, discomfort, panic, etc. 

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