Many people feel uncomfortable in silence and want to turn on background sound. The reason is related to our brain.
Sometimes a person turns on the TV just “for background noise,” even though they’re not watching anything. Some people can only fall asleep to music, a podcast, or the hum of a fan. Complete silence feels unsettling, thoughts start sounding too loud, almost like an inner voice, and an ordinary room suddenly seems strangely empty. Scientists have long noticed that the brain perceives silence not as rest, but as a signal of uncertainty, which is exactly why many people unconsciously avoid it. Let’s explore why this happens and what truly lies behind the desire to constantly hear at least some sound.
Why Silence Makes You Anxious
The human nervous system evolved in conditions where complete silence could mean danger. In nature, the absence of sounds is often associated with a predator appearing nearby, causing everything around to freeze. That’s why the brain learned to treat sudden silence as a suspicious signal.
Research shows that in quiet environments, the so-called threat detection system becomes more active. This system is associated with the amygdala — the brain region responsible for anxiety and the “fight or flight” response. Even when there is no real danger, the brain still begins scanning the surrounding environment.
This causes familiar sensations:
- a feeling that something is wrong;
- mild tension;
- a desire to turn on sound to “bring the space to life”;
- intensified internal dialogue.
For the brain, silence is not rest but uncertainty, and the brain doesn’t like uncertainty.
Silence isn’t dangerous. It’s simply unfamiliar.
Why We Dislike Silence and Turn On Background Noise
When it’s noisy around us, the brain is busy processing external information. When it’s quiet, attention shifts inward. And here an effect occurs that psychologists call amplification of the internal signal. In silence, we’re left without distractions, and then we begin to notice more strongly what is usually hidden behind background noise:
- our own thoughts;
- feelings and anxieties;
- memories;
- doubts;
- worries;
- physical sensations.
This is exactly why many people turn on the TV “for background,” scroll through their phone aimlessly, or fall asleep watching videos. It’s a way to avoid being alone with yourself.
Experiments show that people left in silence without a phone or music begin experiencing discomfort within just a few minutes. In one study, participants were asked to simply sit in a room without sounds — and many preferred even a mild electric shock rather than remaining in complete silence.
This happens because silence amplifies contact with yourself, and sometimes even pushes you toward a conversation with yourself, which isn’t always pleasant.
Why People Feel Uncomfortable in Silence
Modern humans are almost never in complete silence. The city, technology, conversations, notifications, music — all of this creates a constant sound background.
Over time, the brain begins to perceive noise as the norm, which is why many people enjoy white noise for sleep. And when the background disappears, there’s a feeling that something is missing.
This effect is called sensory deprivation — when the amount of external stimuli decreases. In small doses, it’s beneficial, but an abrupt transition can cause:
- anxiety;
- feelings of loneliness;
- a strange sense of unreality;
- heightened sensitivity to sounds.
This is precisely why in absolutely quiet rooms (anechoic chambers), people often begin hearing their own breathing, pulse, and even a slight ringing in their ears, which can be maddening. The brain simply isn’t accustomed to the absence of signals.
People often find it unpleasant to be alone with their thoughts.
Is Silence Beneficial for the Brain and Mental Health
Paradoxically, the very silence that initially causes discomfort is the best way to restore the nervous system. Research shows that a few minutes of silence:
- lower cortisol levels;
- reduce the load on the brain;
- help process emotions;
- improve concentration.
There is evidence that short periods of silence can activate the hippocampus — the brain region associated with learning and memory. Therefore, people who can calmly remain without noise usually cope with stress more easily and recover faster.
How to Get Used to Silence and Stop Feeling Anxious
You don’t need to completely give up background sounds. But it’s helpful to gradually teach your brain that silence is safe.
Practical methods that psychologists use:
- start with short periods of silence — 2–3 minutes;
- be without your phone and music at least once a day;
- go for walks without headphones;
- fall asleep without videos or podcasts;
- pay attention to your breathing and sensations rather than your thoughts.
It’s important not to force yourself abruptly. The brain needs to get used to silence the same way it got used to noise. And once a person adapts, the opposite effect occurs — silence stops being emptiness and becomes a space for rest.
