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We all blink 15–20 times a minute. There are several reasons for this. One is so our eyes do not dry out. Another reason is to protect our eyes from dust. Scientists say they found a further reason.

We all blink 15–20 times a minute, without thinking. There are several reasons for this. One is so our eyes do not dry out. Another reason is to protect our eyes from dust. Scientists say they have ...

Blinking is something we do automatically, without thinking. We blink 15–20 times a minute. There are several reasons why we blink. One is to stop our eyes from becoming dry. This helps our vision.

We all blink 15–20 times a minute, automatically, without thinking. There are several reasons why we blink. One is to stop our eyes from becoming dry. This helps us see. Another reason is to protect ...