what are tears for?

Answer 1

tears appear to be from eye but that not true tears is emotion from our heart and plp who have no tears bad plp

Answer 2

To cleanse the eye. They help wash out dust or particles that could injure the eye. Tears could also be a cleanser for the soul. When our emotions are overwhleming, and tears form, it seems to help us clear our mind as well. They calm us when we feel joy or sadness.

Answer 3

Tears are to protect your eyes

Answer 4

Tears keep your eyes from getting dried up, but also act as a sign to show emotion. Wether it bieng sad, mad, angry, jealous, etc.

Answer 5

To physically release grief. Grief is the eraser of trauma and the result of such release is Knowledge and empathy.

Peace

Answer 6

to keep cleaning your eyes,
to tell you that something is overwhelming you,

to tell others that something is overwhelming you so that they can take action.

to pay respect to an Onion being slaughtered

Answer 7

A sign of emotion.....

Answer 8

Tears are a liquid produced by the body's process of lacrimation to clean and lubricate the eyes. The word lacrimation may also be used in a medical or literary sense to refer to crying.

Physiology
In humans, the tear film coating the eye has three distinct layers, from the most outer surface:

The lipid layer contains oils secreted by the Meibomian glands. The outer-most layer of the tear film, it coats the aqueous layer to provide a hydrophobic barrier that retards evaporation and prevents tears spilling onto the cheek.
The aqueous layer contains water and other substances such as proteins (e.g. tear lipocalin, lactoferrin and lysozyme[1]) secreted by the glands of Kraus and Wolfring and the lacrimal gland. The aqueous layer serves to promote spreading of the tear film, control of infectious agents and osmotic regulation
The mucous layer contains mucin secreted by the conjunctival goblet cells. The inner-most layer of the tear film, it coats the cornea to provide a hydrophobic layer that allows for even distribution of the tear film, as well as mucus covering of the cornea epithelium to prevent abrasion.
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Drainage of tear film
One lacrimal gland is located superiortemporally to each eye, behind the upper eyelid. 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 through the nasolacrimal duct, and finally into the nasal cavity. An excess of tears, as with strong emotion, can thus cause the nose to run.

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Types of tears
There are three very basic types of tears:

Basal tears: In healthy mammalian eyes, the cornea is continually kept wet and nourished by basal tears. They lubricate the eye and help to keep it clear of dust. Tear fluid contains water, mucin, lipids, lysozyme, lactoferrin, lipocalin, lacritin, immunoglobulins, glucose, urea, sodium, and potassium. Some of the substances in lacrimal fluid fight against bacterial infection as a part of the immune system.
Reflex tears: The second type of tears results from irritation to the eye by foreign particles, or substances such as onion vapors or tear gas or pepper spray. These reflex tears attempt to wash out irritants that may have come into contact with the eye.
Crying or weeping: The third category, generally referred to as crying or weeping, is increased lacrimation due to strong emotional stress, depression or physical pain. This practice is not restricted to negative emotions; many people have been known to cry when extremely happy or when they are laughing. In humans, emotional tears can be accompanied by reddening of the face and sobbing — cough-like, convulsive breathing, sometimes involving spasms of the whole upper body. Tears brought about by emotions have a different chemical make up than those for lubrication.[2]
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Diseases and disorders
Main article: List of eye diseases and disorders
"Crocodile tears syndrome" is an uncommon consequence of recovery from Bell's palsy where faulty regeneration of the facial nerve causes sufferers to shed tears while eating.[3]

Keratoconjunctivitis sicca, more commonly known as dry eye, is a very common disorder of the tear film. Paradoxically, sufferers can experience watering of the eyes which is in fact a response to irritation caused by the original tear film deficiency.

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Societal aspects
Most mammals will produce tears in response to extreme pain or other stimuli, but crying as an emotional reaction is considered by many to be a uniquely human phenomenon, possibly due to humans' advanced self-awareness. Some studies suggest that elephants and gorillas may cry as well.[citation needed]

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 anger and grief, but crying can also be triggered by sadness, joy, fear, humor, frustration, or other strongly-experienced emotions.

In many cultures, crying is associated with babies and children. Some cultures consider crying to be undignified and infantile, casting aspersion on those who cry publicly. In most cultures, it is more socially acceptable for women to cry in public than men.

An insincere display of grief or dishonest remorse is called crocodile tears, from the ancient anecdote that crocodiles would pretend to weep in order to lure prey.[4]

Many religions describe gods or prophets as crying:

According to a hadith, the prophet Muhammad proclaimed: "This (tears) is an expression of the tenderness and compassion, which the Lord hath put into the hearts of His servants. The Lord doth not have compassion on and commiserate with His servants, except such as are tender and full of feeling."
The shortest verse in the Bible (in the King James Version of the Bible and some other English translations) is simply: "Jesus wept."
Jade is sometimes known as "tears of the Buddha".
The Incas referred to silver as the "tears of the moon".
Some modern therapy movements such as Re-evaluation Counseling believe that crying is beneficial to health and mental wellbeing, and positively encourage it.

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Spiritual aspects
The Gift of Tears in Shin Buddhism: Tears of joy and grief cleanse our souls. Christians as well may perceive tears as spiritual gift when they refer to Gospel of Jesus Christ: "Blessed are you that weep now, for you shall laugh" (Luke 6.21), while Weeping Icons are a common feature of the Easten Christian Traditions. Tears play an important role in the Eastern Christian Mystic Theology.