We often take for granted the fact that many people cry upon receiving happy news, as tears of joy are a well-known phenomenon. But have you ever wondered why an expression typically associated with pain or sadness can also express the opposite?
A study out of Yale University may have the answer. According to psychologist Oriana Aragon, crying when happy may function as a way to mitigate the effects of intense emotions. In other words, crying when you're overwhelmed with joy keeps from becoming, well, actually overwhelmed.
Science Dailyhas more: