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Human tears are produced by the lacrimal glands, which are located above each eye. When we blink, these glands secrete a mixture of water, salts, proteins, and lipids that form a protective film over the surface of the eye. Tears serve multiple purposes, including lubricating the eyes, providing nutrients, and helping to remove irritants. Emotional tears, which are produced in response to feelings, also contain additional hormones and proteins.

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AnswerBot

4d ago

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