Puffy eyes can have a number of causes, including crying. Puffy eyes from crying can be relieved with home treatments such as ...

Since tears run from the eye into the nasolacrymal ducts, he suggested that they serve as an adaptive trait counteracting the damaging effect of tearless infant crying.

All humans cry. Some of our tears are meant to keep our eyes moist and healthy. Others clean out the eye from dust, pollens and other pollutants.

Crying can be scientifically defined as the shedding of your tears in response to an emotional state; very different from ‘lacrimation’, which is the non-emotional shedding of tears. With that ...

Humans’ emotional tears are unique. How they developed is unclear, but they seem to be beneficial. So go ahead, have a good cry.

Hi Grace, thank you for a great question. We cry, or make tears, for three reasons. First, we need tears to keep our eye healthy, so you can say that our eyes cry a little bit all through the day ...

One of the primary causes of crying is fatigue. Tears are a social signal, which communicate our distress. But those facts only scratch the surface of why we cry ...

All tears start with three layers to keep eyes moist and protected: the mucous, aqueous and lipid layers. But what’s in those layers are different depending on the type of tears you’re crying .

Arizona Diamondbacks player Ketel Marte shed tears during a game last week, sparking a sports-world controversy.