棕色噪音是類似打雷或飛機引擎的低頻調聲響，近期許多有 ADHD 的人在抖音分享棕色噪音讓腦部沈澱下來的效果，我自己試了一下，覺得很不錯。Imagine a deep, static rumble, like the low roar of a jet engine. The sound is called brown noise and has become popular among people with attention-deficit/hyperactivity disorder as a tool to help them focus or relax.