During singing, vocal cords open and close around 440 times per second.
Vocal cords are white.
Whispering is harder for the cords than speaking quietly.
The female voice is more complex than the male voice.
Vocal cords protect the airways from suffocation, and prevent food, drinks, and saliva from getting into them.
The brain reacts to voices differently. Male voices create an activity in the back part of the brain, and female voices activate our brains in the hearing part where it’s easier to decode what we hear. This is probably why female voices sound clearer to us.
The people who hear voices in their heads, almost always hear male voices. According to scientists, female voices are more complex, so it’s harder for the brain to fake them.
The voice helps us not only hear people but also determine their appearance, gender, and age. It’s an important tool to identify someone we hear but do not see.
The famous 12 musical tones that almost all music is based on appeared as a result of people using their voices throughout millions of years of evolution.

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