"Researches that have been done on emotional tears in the past suggest that when a person cries, tears carry with them all the stressful chemicals in the body. Emotional tears have high levels of manganese and prolactin hormone. When these chemicals are shed along with the tears, the person feels that his stress levels have come down and thus, it makes him feel better. That's the reason why do we cry when we feel sad or hurt, because it makes us feel better. "
googled it :)
at 2:05 PM on Jul. 5, 2010