Are secretions that clean and lubricate the eyes. Lacrimation or lachrymation (from Latin lacrima, meaning "tear") is the production or shedding of tears.
Strong emotions such as sorrow, elation, awe and pleasure, as well as irritation of the eyes, laughing, and yawning may lead to an increased production of tears, or crying.
The lacrimal glands secrete lacrimal fluid, which flows through the main excretory ducts into the space between the eyeball and lids. When the eyes blink, the lacrimal fluid
is spread across the surface of the eye. Lacrimal fluid gathers in the lacrimal lake, and is drawn into the puncta by capillary action, then flows through the lacrimal canaliculi
at the inner corner of the eyelids entering the lacrimal sac, then on to the nasolacrimal duct, and finally into the nasal cavity. An excess of tears, as with strong emotion,
can thus cause the nose to run.
In nearly all cultures, crying is seen as a specific act associated with tears trickling down the cheeks and accompanied by characteristic sobbing sounds. Emotional
triggers are most often sadness and grief, but crying can also be triggered by anger, happiness, fear, laughter or humor, frustration, remorse, or other strong, intense
emotions. In many cultures, crying is associated with babies and children. Some cultures consider crying to be undignified and infantile, casting aspersions on those who
cry publicly, except if it is due to the death of a close friend or relative. In most cultures, it is more socially acceptable for women and children to cry than men. In some
Latin regions, crying among men is acceptable.
Some modern therapy movements such as Re-evaluation Counseling teach that crying is beneficial to health and mental well-being, encouraging it positively. An insincere
display of grief or dishonest remorse is sometimes called crocodile tears in reference to an Ancient Greek anecdote that crocodiles would pretend to weep while luring or
devouring their prey. In addition, in medical terms, someone is said to have Crocodile tears syndrome as an uncommon consequence of recovery from Bell's palsy, in which
faulty regeneration of the facial nerve causes sufferers to shed tears while eating.
Tear composition varies from tear types. Mainly, tears are composed of water, salts, antibodies and lysozymes (antibacterial enzymes). According to a discovery by Dr.
William H. Frey II, a bio-chemist from St.Paul Ramsey medical center in Minnesota, the composition of tears caused by emotion differs from that of tears as a reaction to
irritations, such as onion fumes, dust or allergy. Emotional tears are composed of more protein-based hormones, such as prolactin, andrenocorticotropic, and leucine
enkephalin (a natural pain killer), which is suggested to be the mechanism behind the experience of crying from emotion making an individual feel better.
Now why you feel scared for show your tears.. be are human.