A metaphor borrowed from noise-canceling headphones, describing the act of deliberately tuning out mental clutter, intrusive worries, or overstimulation — treating one's own attention like an audio signal that needs active noise reduction.
REAL-WORLD EXAMPLE
"今天必须大脑降噪，不然真的要emo了。"
LORE & ORIGIN
Extends the now-familiar physical concept of noise-canceling headphones into a mental-health metaphor, framing anxious or repetitive thoughts as "noise" that can be actively filtered out rather than passively endured. Reported by Chinese media in September 2026 as one of several genuinely widespread wellness-adjacent internet phrases circulating in short-video comment sections, group chats, and social feeds.
MENTIONS OVER TIME
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