We know we can concentrate and learn best when we are in silence, because the brain also works with background noise, which can distract and stress us.
But a study from 2015 could show a lot more:
In complete silence the brain forms new cells in the hippocampus. The region that is essential for memory and learning.
“Both Mozart and Silence represent highly novel stimuli. To our initial surprise, silence — the complete absence of auditory input — was the only stimulus that elicited a strong response at the level of immature (7 day old) new neurons.”
We improve our ability to think and learn by as much as 62% because forgotten cells are reactivated. So absolute silence renews and expands our brain structure and acts like a time-out for the brain.