Why do people cry?

We all know that crying is emotional relaxation that facilitates the suppressed stress. But much less is known about what tears is one of the best ways for the body to get rid of toxic substances. For example, with tears face are the same salts that are excreted in sweat and urine. Tears contain several different salts that gives the blood, freeing them from the body.


Oddly enough, we are not born with this ability. The screaming is always accompanied by tears. Cry babies begin only in 5-12 week after birth, a little before the time when in their Arsenal appears laughter. The average duration of crying is 6 minutes. Children cry more often adults, approximately 65 times per month.


Scientists have found that relief does not bring an emotional release caused by the sobs, and... chemical composition of tears. They contain stress hormones secreted by the brain at the time of the outburst. Lacrimal fluid is removed from the body substances produced by nerve strain. Cry it out, the person feels calmer and even more cheerful.


From a medical point of view, tears are also important. They cleanse the eyes from dust, other irritants. They contain the oxygen necessary for vital activity of organs. Lacrimal gland function in humans, constantly, without rest. The emissions of tears moisten the eyeball. Based on this, scientists say that people crying around the clock.

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