The Aztec skull whistle produces a shrill, screaming sound. A study shows that these whistles have a disturbing effect on the human brain. The Aztecs may have deliberately used this effect in ...
Researchers have used AI tools to describe three sub-types of Chiari type-1, which will help guide clinicians to make the most effective treatment decisions for their patients. Chiari type-1 ...
A terrifying ancient instrument known as the Aztec death whistle, which produces a sound described as the "scream of a thousand corpses", remains just as frightening to modern listeners as it was 500 ...