You blink 66 percent less often than you normally would while checking your phone or watching videos, according to an article on the website wellandgood.com.
But how do you know how much screen time is too much? Or whether it's even such a big deal?
First, you need to figure out whether you do, in fact, have a problem. There are obvious signs, such as blurred or double vision, fatigue, or recurring headaches.
But the signs may not be that obvious.
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