Why do we Blink when we hear Loud Sounds? | #aumsum

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It’s AumSum Time. Why do we Blink when we hear Loud Sounds? Coz loud sounds hypnotize us and make us sleepy. Oh, you lazy. The blinking response to a sudden loud noise
is scientifically termed as. The acoustic startle-reflex eye blink. It is a protective mechanism we have developed
due to evolution. In ancient times, we were very vulnerable
to attacks, and many a times. A loud sound meant that we were either being
attacked or injured by a falling rock. Now, our eyes being extremely sensitive, they
needed protection first. Hence, whenever an intense noise suddenly
reaches our ears, within 3 to 8 milliseconds. A cluster of giant neurons called caudal pontine
reticular nucleus gets activated. Which eventually activate motoneurons in our
brainstem. These motoneurons inform the facial nerves
and muscles to close our eyes tightly. Thus preventing them from any kind of harm. Hence, it is our natural reflex to blink in
response to a loud bang.

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