# 反彈性失眠的原因是一種依賴性,導因於藥物劑量提高時,大腦為了降低對這種外來化學物質的敏感度,而改變了受體的平衡;這個現象也稱為耐藥性。停止服藥後,還會發生藥物戒斷現象,包含了令人不舒服的失眠嚴重度陡升。——《為什麼要睡覺?》
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