128 Hz is a deep, steady tone some people use when brain fog makes focus feel slippery and the day feels mentally cloudy. If you’ve ever stared at a simple task and felt your thoughts “buffer,” this kind of low-frequency routine can be a gentle way to reset attention. Brain fog can show up after poor sleep, long stress streaks, dehydration, or plain old information overload. While no single sound cures it, using 128 Hz may support the conditions that make clarity easier: a calmer nervous system, steadier breathing, and fewer mental distractions. In practice, the tone works like an…