Interestingly, emotional tears are rare or nonexistent in other species. Discounting a few unverified tales of weepy gorillas and elephants (which may well prove, someday, to be accurate), it seems humans are the only ones to cry. Maybe we have more developed emotional processes, and emotional tears appear a way of conveying profound emotions. Crying may seem as though your body has failed you. It is more likely, however, that you have reached a level of stress that is detrimental to your health and that you should let it out. It's okay to cry.
Find out more about this book:YOU: The Owner's Manual, Updated and Expanded Edition: An Insider's Guide to the Body that Will Make You Healthier and Younger