We blink way more than we think we do! It’s basically because we’re always crying a little bit. Tear glands on the corners of our eyes, making little tears. When we blink our eyelids wipe away all of the little tear drops to keep our eyes as clean as possible. We don’t have to remember to blink, it just happens automatically. This is called a ‘reflex’.
Humans blink to keep their eyes hydrated. Interesting fact – adult eyes dry out faster than babies eyes, which is why babies look like they never blink!
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