The Benefits of Silence: What Happens When the Sound Stops

It is a strange confession for someone who writes about sound, but some of the most restorative listening I do involves no sound at all. The moment after the dishwasher finishes. The hush when snow has fallen overnight and the street has not yet woken. The second or two after a piece of music ends, before anyone claps. We speak of silence as an absence, a mere gap between sounds, but the body does not seem to experience it that way. To the nervous system, silence appears to be an event in its own right, and rather a significant one.

In a culture that treats quiet as empty space to be filled, and fills it with remarkable diligence, it is worth asking what we actually know about silence. The research is younger and smaller than one might expect, but what exists points in a consistent direction: the pause is not nothing. The pause may be the point.

The two-minute pause that beat the music

One of the most charming findings in this small literature arrived almost by accident. The physician Luciano Bernardi and colleagues set out to study how different styles of music affect the cardiovascular system, playing musicians and non-musicians everything from slow classical to fast techno while tracking breathing, heart rate and blood pressure. Faster music aroused the body; slower music settled it. The surprise lay in the pauses. Two-minute silences inserted between the musical tracks produced more relaxation, by these physiological measures, than any of the music itself, including the music chosen to be relaxing (Bernardi et al., 2006, Heart).

There is a nuance here worth savouring: silence soothed most when it followed sound. A pause after music relaxed listeners more deeply than the long baseline quiet before the experiment began. Contrast, it seems, is part of the medicine. The ear is carried along by gentle stimulation, and then, when the stimulation lifts, the body settles into the gap like a sigh completing itself. Anyone who loves the moment a rain recording fades out, or the held stillness at the end of a sound bath, has felt this from the inside.

We fill every silence as though it were a hole in the road. The body treats it more like a lay-by: a place to pull over and let the engine idle.

The mice in the quiet room

A second, stranger clue comes from a laboratory in Germany. The biologist Imke Kirste and colleagues were studying how sounds affect the growth of new neurons in the adult brain, exposing mice to various auditory environments: white noise, pup calls, piano music by Mozart, and, as a humble control condition, two hours of silence each day. The control stole the show. It was the silent mice who showed the most growth of new cells in the hippocampus, a region central to memory and emotion, with those cells surviving and maturing over the following weeks (Kirste et al., 2015, Brain Structure and Function).

One must be honest about what this is: a study in mice, not people, and no proof that a quiet hour improves human memory. But it planted a genuinely provocative idea, that silence is not a neutral baseline the brain ignores, but an unusual, almost alerting condition that the brain responds to actively. On this reading, deep quiet is not the absence of input. It is a distinct input, and possibly a nourishing one.

Why silence can feel so loud

If quiet is so good for us, why do so many of us flee it? Switch everything off and sit in a genuinely silent room, and the first discovery is rarely peace; it is the mind, at full volume. Without external sound to grip, attention turns inward, to the racing thoughts, the rehearsals and replays that background noise had been politely covering. Silence does not create that inner noise. It reveals it, the way stopping the car reveals the ringing in one's ears.

This is why I counsel gentleness with silence, as with any strong medicine. If pure quiet feels abrasive, there is no failure in preferring nearly-silence: the soft textures beloved of ASMR listeners, rain, room tone, a whisper, which give the mind a thin handrail while asking almost nothing of it. And the eyes can hold the handrail instead of the ears. Many people use Feelsy with the sound off entirely, watching a slime fold or a texture drift in complete quiet; the gaze stays gently occupied while the ears stand down, which makes the silence habitable rather than stark. It is, I find, one of the kindest ways to practise being in a quiet room.

Practising small silences

Deliberate silence need not mean a retreat or a monastery. It can be domestic, brief and almost invisible. A few suggestions, offered in the spirit of Bernardi's two-minute pauses:

• End your listening with a pause. When a piece of music or an episode finishes, let two minutes of quiet follow before the next sound begins, and notice the settling.
• Claim one silent routine: the first coffee, the washing-up, a walk to the postbox, done without input, as a small daily lay-by.
• Drive or commute one leg in quiet. The first minutes may itch; the itch is usually the noise leaving.
• Once in a while, sit in a quiet room for five minutes with a slow visual to rest the eyes on, and let the ears do absolutely nothing.

If racing thoughts rush into the gap, a slow exhale gives them somewhere to go; something like the 4-7-8 breath, which Feelsy will pace for you, fills a silence with rhythm rather than sound.

The rest in the music

Musicians have always known that the rests are written into the score, that music is made of sound and silence in partnership, and that a note only lands because of the space around it. Our days are scored the same way, though we have taken to deleting the rests. The research on silence is young, but its suggestion is old: the nervous system needs its pauses as surely as the melody does. Two minutes of nothing, now and then, may be some of the most restorative listening you do all day.

Feelsy is a wellness product, not medical advice. If stress, anxiety or sleep problems persist, please speak with a qualified professional.