• Question: why do humans blink

    Asked by lol//123 to Jessica, Andrew, Jade, Kevin, Lynn on 23 Jun 2015.
    • Photo: Jess Wade

      Jess Wade answered on 23 Jun 2015:

      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’.

    • Photo: Andrew Fensham-Smith

      Andrew Fensham-Smith answered on 23 Jun 2015:

      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!