why humans releases tears when they feel sad
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Releases toxins and relieves stress
When humans cry in response to stress, their tears contain a number of stress hormones and other chemicals. Researchers believe that crying could reduce the levels of these chemicals in the body, which could, in turn, reduce stress.
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2
Answer:
Releases toxins and relieves stress
When humans cry in response to stress, their tears contain a number of stress hormones and other chemicals. Researchers believe that crying could reduce the levels of these chemicals in the body, which could, in turn, reduce stress.
The part of the brain that switches on the “tear fountain” receives signals from the part of your brain that controls your emotions. ... Psychologists believe that crying because of emotions is something only humans do. Most of us cry sometimes because we are really sad. Some of us also cry when we are happy.
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