Why Do We Blink When We’re Tired?

Blinking is like giving your eyes a little nap. When we're tired, our brains send extra messages to the eye muscles so they can rest up. This makes us blink more often, it's kind of like how you yawn when you’re sleepy! Blinking helps keep our eyes moist and ready for action.

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Examples

Your eyes blink more while reading a long story at bedtime.
You start blinking rapidly during a boring meeting in the afternoon.
When you’re watching a movie and feel sleepy, your eyes blink more often.

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Categories: Health · eyes,sleep,body signals