Your Brain on Stillness
I live in a busy house- full of guests, conversations, and the constant background hum of children and life. Finding a moment of quiet can feel almost impossible.
Lately, I’ve been making a conscious effort to carve out small pockets of stillness in my day- moments where I do absolutely nothing. No movement, no sound, no music, no multitasking.
It got me wondering: what does this quiet actually do for the brain?
So this week, I want to share some research on the neuroscience of silence and stillness and why it might be one of the most restorative things you can offer your mind.
The Science: What Stillness Does to Your Brain
In 2013, neuroscientist Imke Kirste and colleagues conducted a study that began as an experiment in sound but ended up revealing something about silence.
They placed mice in different auditory environments for two hours a day:
- Ambient noise (their normal surroundings)
- White noise
- Pup calls (sounds natural and relevant to mice)
- Mozart’s piano sonata
- Silence
After several days, the researchers found that silence led to the highest rate of new brain cell growth in the hippocampus– the area linked to memory, learning, and emotional regulation.
While music and other sounds initially stimulated some neural activity, only silence led to lasting neurogenesis, meaning that the new cells actually survived and integrated into brain tissue.
In other words, silence didn’t just calm the brain, it helped it renew itself.
Translating the Science
Of course, it’s important to note that mice are not humans. Their brains are smaller and simpler, and changes that occur in days for them could take weeks, months or even years in humans.
But animal models are a crucial starting point. For decades, studies on mice have given us baseline insights into how the human brain learns, repairs, and grows.
These findings don’t give us a direct mirror of human neurogenesis but they offer a valuable window into the biological potential our brains still hold.
In humans, silence may not create new neurons overnight, but it can trigger restorative processes:
- Lowering cortisol (the stress hormone)
- Boosting brain-derived neurotrophic factor (BDNF), which supports neuronal growth
- Activating the default mode network (DMN) — the brain’s “daydreaming” circuit, where reflection and creativity flourish
And studies using brain scans have shown that even in quiet, the auditory cortex remains active, as if the brain is “listening for something.” This gentle attentiveness may explain why silence often feels like a deep exhale- your nervous system shifting from constant reaction to mindful awareness.
Reclaiming Quiet
Something to try:
- Find 10 minutes of true silence. No music, no phone, no background chatter.
- Simply sit. Let your mind wander, without judgment.
- Notice the transition. Your thoughts may race at first, that’s your brain adjusting from stimulation to stillness.
- Stay with it. Beneath the noise, you may begin to sense subtle quiet rhythms- your breath, your heartbeat, your own inner space.
Think of it as a “neural reset”- a way to give your brain the pause it rarely gets.
Silence isn’t empty, it’s full of restoration.
So the next time you feel overwhelmed by sound, screens, or schedules, try giving your brain what it quietly craves: nothing at all.