Francesca Paradisi answered on 17 Nov 2014:
Very good question! tears are coming out of tear-ducts, little channels in the eye lid. When we are upset or very emotional, the production of tears increases a lot and they literally come out in floods!
Ahmed Osman answered on 17 Nov 2014:
Tears are produced by tear glands, which are small glands inside your upper eyelid. Tears keep the surface of your eyeball clean and moist, and help protect your eye from damage.
When you blink, your eyelids spread the tears over the surface of the eye. Sometimes tears flow over your lower eyelid, but mostly the tears flow down a tiny tube at the edge of your lower eyelid, next to your nose – if you look very carefully you can see a tiny dot that is the beginning of this tube. This tube carries the tears to the back of your nose (and this is why your nose ‘runs’ when you cry!)
What makes eyes water
There are several reasons why eyes produce more tears than are usually needed.
crying * Something may irritate the eye. It could be something that has got stuck in the eye, like an eyelash or a speck of dust. It could be something that you cannot see like smoke, or fumes from cleaning chemicals or from cutting up onions.
* You may be suffering from hay fever or a cold.
* You may have an eye infection – conjunctivitis (say con-junk-tiv-eye-tis).
* You may feel very emotional. We call this crying.
Why we cry
We cry for lots of different reasons.
Babies cry to communicate that they need something. Maybe they are hungry or thirsty, maybe they are wet and uncomfortable, or maybe they have a pain.
We may cry when:
* we feel sad about something that has happened either to us or to others
* we hear about something sad
* we watch a sad movie or listen to sad music
* we are afraid
* we are hurt or in pain
* we feel really angry
* we feel that we have done something wrong
* we are trying to get our own way
* we feel lonely
* someone or something we love (like a pet) has died or left our lives in some way
* we lose a game
* we win a game.
We may even cry when we feel really happy or proud, or when other people around us are crying.
Some interesting stuff about crying
Scientists have been studying crying for many years. These are some of the things they have found out.
* In general, baby boys cry more than baby girls.
* In some cultures or parts of the world, boys and men are not expected to cry, even if they are hurt, because it is thought that crying makes them look weak and men should always be strong.
* In other cultures it is OK for boys and men to cry, as it is thought that crying shows that you have deep feelings and care about others.
* In some cultures it is not OK for males or females to cry in public, as this ‘lets the family down’.
* Males and females seem to cry for different reasons.
** Females are more likely to cry when they are angry or frustrated – like a ‘bad hair day’, when everything starts to go wrong and whatever you do doesn’t work.
** Males are more likely to cry when they are happy or proud – like when they or their team win a Grand Final game, or an Australian wins an Olympic gold medal.
* Sometimes we laugh until we cry.
laughing till you cry
hope this help
and thanks Chloe and hope for you all the happiness in your life forever
James Sullivan answered on 17 Nov 2014:
Ahmed’s nailed this fairly comprehensively.
An interesting fact is that animals are not known to cry,
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