How meditation may clear the mind

Meditation is often said to clear and sharpen the mind. Scientists explored a possible reason inside the brain. They looked at how the practice may lift the useful signals while quieting the background noise. A better balance between signal and noise could explain the calm focus people report. The paper offers a way to think about how meditation works. It does not prove every claim made about it. It is a careful idea, shared for other researchers to test.

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