Charlotte
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Blink. Chances are, you haven't done that in a while. Now, focus on something 20 feet away for 20 seconds.
Why it matters: More than 18 years of our adult lives are spent online, data suggests. That's not great news for our eyeballs.
How it works: When we stare at a screen, we forget to blink and our eyes dry out.
20-20-20 briefly jolts people away from devices and redirects their focus on something else, relaxing eye muscles and encouraging hydrating blinks.
More of the doctor's orders