I had been really stressed out and felt frustrated, angry and kind of hopeless, when all of a sudden I felt the urge to cry. I had actually been holding back the tears all week, but I just couldn't do it anymore. I bursted in to tears and had a good cry. Then the most amazing thing happened. I felt a whole lot better. And this made me realise that crying is our body's natural calming mechanism. Crying is actually quite important, just as is laughing.
Did you know that there are three different types of tears? Basal tears, which clean and lubricate your eyes; reflex tears, which drain when your eyes are irritated by things like onions or pollen; and emotional tears.
I found this information on Wikipedia in relation to crying" A neuronal connection between the lacrimal gland (tear duct) and the areas of the human brain involved with emotion has been established. Tears produced during emotional crying have a chemical composition which differs from other types of tears. They contain significantly greater quantities of the hormones prolactin, adrenocorticotropic hormone, Leu-enkephalin, and the elements potassium and manganese.
I looked into these hormones and found that Leu-enkephalin are actually natural pain killers, which may have potent opiate like effects, and are even classified as endorphins.
Did you hear that? Endorphins. Just as sweating it out with exercise can make you feel good, so can having a good cry.
Therefore, don't hold back the tears, just let them come out. It's just your body's natural way to make you feel better. If all else fails, have a cry.