Do nonhuman animals ever cry from sadness? Tears are useful for our eyes—as they ... Although its exact function is unknown, there are many hypotheses for why we weep. A good cry may help us cope with ...

Tears are usually seen as a sign of sadness or pain, but it’s not uncommon for people to cry during life’s most joyful moments: weddings, births, reunions, sporting triumphs, or even just an ...