"The rest of Harrison's appearance was Halloween and hardware." vonnegut. what does this metaphor mean?​

Vonnegut uses the metaphor of “The rest of Harrison's appearance was Halloween and hardware” and the simile that he “looked like a walking junkyard” to convey to the reader that Harrison's extraordinary existence is being destroyed by the society's enforced equality.

The answer would be :   chemicals associated with short-term stress.
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