What Are Fever Dreams?

Fever dreams are intense and bizarre nightmares experienced during illness. They are linked to increased brain activity due to higher temperatures and immune responses. Scientific studies suggest that fever, not the specific illness, causes these dreams. The amygdala, responsible for fear and anxiety, becomes more active during fever, leading to nightmares. Cytokines, chemical signals from the immune system, also contribute to this heightened brain activity, resulting in disturbing dreams.

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