While crying is a perfectly natural thing to do, it doesn't always happen at the most opportune times. Surprisingly, our bodies don't just automatically produce tears. Our limbic system, which is the ...

Humans are the only animal to produce emotional tears. Asking questions about this behavior can help us better understand how we live our lives. That question has many answers. To start, there are ...

Whenever I need a good cry, I put on Captain America: The First Avenger — or, at least, the final 15 minutes of it. In those 15 minutes, our titular hero, otherwise known as Steve Rogers (Chris Evans) ...

If you’ve felt your eyes welling up when your dog greets you with licking and tail-wagging after a long day away, the feeling may be mutual. Dogs produce more tears when reunited with their owners ...