Answer and Explanation:
Hello. You forgot to say that this question is about "The Crucible".
In "The Crucible" hysteria is caused by irrational fear and the constant sense of threat that the entire population feels towards each other. This fear is a feeling that the population releases at once, having suppressed it for a long time. Making them start accusing each other in a completely insane way, in an attempt to protect themselves from witchcraft and the worship of the devil that is the source of all this fear.
As a result, the population enters a state of complete chaos, which grows progressively as time passes. The charges led many members of society to be arrested and even sentenced to death. This prevented the necessary work from being done to the population, in addition to causing a disruption to the whole society, increasing hysteria due to the needs that the population began to feel.
