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What Is the Most Annoying Sound in the World? Science Has the Answer.

Research led by Dr. Sukhvinder Kumar of Newcastle University in the UK reveals that the sound of fingernails scraping on a chalkboard or similar noises like metal scraping glass immediately activates areas of the brain associated with fear, stress, and discomfort. This study was published in the Journal of Neuroscience.
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Research led by Dr. Sukhvinder Kumar of Newcastle University in the UK reveals that the sound of fingernails scraping on a chalkboard or similar noises like metal scraping glass immediately activates areas of the brain associated with fear, stress, and discomfort. This study was published in the Journal of Neuroscience.

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Azteca Baja California broke the news in on Saturday, January 31, 2026.
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