Swiss and Norwegian neuroscientists have discovered that the ancient Aztec death whistle — often credited with emitting the scariest sound on earth — still terrifies people today due to a primal fear ...

The Aztecs were able to create this nightmarish noise by modeling the death whistle after the human larynx. When the user blows into the instrument, the wind divides in two, ...

Ranging from a threatening hiss to a blood-curdling scream, the sound of the Aztec death whistle is as creepy as the ...

More ghostly goings-on have been witnessed at the derelict Rosslynlee Hospital that used to treat psychiatric patients but ...

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? The Aztec death whistle is a mesoamerican instrument designed to imitate a human ...

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 ...

Whistle notes are a human voice’s highest notes, with a sharp, flute-like sound distinct from regular singing. These super high pitches, even higher than the soprano range, are made by the vocal ...