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 ...

As Time magazine science writer Mandy Oaklander put it, “Tears are a signal that others can see.” It’s a natural response to ...

When you cry, you’re literally releasing stress chemicals through your tears. Research has found that emotional tears contain higher levels of stress hormones and other toxins than regular eye ...