40 Hz: The Frequency That Clears Brain Plaque and Toxins

Our brains hum at many frequencies—but one in particular, 40 Hz, has been shown to boost mental clarity and detoxify the brain at a cellular level.

At this gamma rhythm, your brain’s microglia (its immune and detoxifying cells) wake up.
When active, they help clear waste, plaque, and toxic proteins that can cloud communication between neurons. 

What the Research Shows

Studies from MIT have found that exposing the brain to 40 Hz stimulation—through sound, light, or both—can activate microglia and improve brain health in animals.

In these studies, daily sessions of 40 Hz tones led to:

• Reduced buildup of amyloid and tau proteins

• Healthier neuron activity

• Improved memory and cognitive performance

In early human trials, participants exposed to 40 Hz light + sound showed slower brain atrophy and better focus compared to control groups.

While more research is needed, the evidence suggests that sound alone can gently entrain the brain into its gamma rhythm, supporting clarity and alertness.

Try It

Below is a soundbath infused with a 40 Hz tone similar to what’s been used in laboratory settings. Pairing it with a soundbath makes it much easier to listen to for longer periods of time.

Find a quiet space.
Sit or lie down comfortably.
Close your eyes and listen.

You might notice your mind clearing, your breath slowing, and a subtle sense of focus returning.

Why It Matters

As we age, our natural gamma rhythms tend to weaken.
That slowing can impact memory, focus, and how efficiently the brain clears itself of waste.

Reintroducing 40 Hz sound may help re-engage those rhythms—giving your brain a cue to restore balance and clarity.

Frequency medicine is here.