Crying Away Stress :: Biology Essays Research Papers

Tearful Serenity Crying Away the Stress both(prenominal) days youve just had it. Youve been talked at all day by population you couldnt c be less about, the lady at the convenience store snapped at you, your friend invited herself over right when you had exactly one hour to put out a paper, you got caught in a traffic jam going shopping, youre outset to seriously re recover your life career ... and now theres a 30 dollar parking ticket stuck on your windshield because that darn tool wasnt accepting qu cheaters.You burst into tears.Tears, stupid tears Always coming when you least(prenominal) want them. Now everyone on the street is looking at you and your eye are so blurry you trip over the bumper and stumble into the street. What a klutz. How humiliating Why do you always have to cry standardised this?But every tree trunk cries. For its capacity to signal physical or emotional distress, inst has left an indelible mark on the slate of human history. Where would art and poetry b e without tears? In fact, where would we be? In truth, exigent plays an essential role in our biology as well as our social and cultural starts. We cant stop the tears from flowing, but we can check out why they flow and why crying might not be, later on all, such a bad thing to do.Tears are body excretions, just like sweat and mucous and peeing. We dont usually like to think about body excretions, but when we do, we bear with them because we know they have principal(prenominal) functions. Sweat removes excess salts from the body and cools us mucous traps surrounding pathogens urine and feces expel unneeded, toxic waste products that would harm the body if they remained indoors it. All third contribute to the bodys self-regulatory or homeostatic nature, readjusting for balance. Tears, too, must look a biological, homeostatic purpose. But what? In fact, there are three known answers to this question.Scientists distinguish three kinds of tears, which differ from each other b y function and also, probably, by composition. Basal tears actually form continuously. We dont experience these minute secretions as tears because they dont ball up as we are used to tears doing instead, every time we blink, our eyelids spread the basal answer out over the surface of our eyeballs(1). Basal tears keep our look lubricated, important in preventing damage by air currents and bits of floating debris(2), (3).