The chemical composition of tears depends on the emotion you're feeling when you cry them.
Babies' eyes do not produce tears until the baby is approximately six to eight weeks old.
The composition of tears is similar to saliva - they're both made of proteins, salt and hormones.
The smell of a woman's tears reduces men's arousal and testosterone levels.
We have three types of tears - basal, reflex and psychic. Psychic tears, the ones we produce when we are sad, have a different chemical make up than the other two and contain a natural pain relief, leucine enkephalin, which is perhaps why we feel better after we cry.
Tears in your eyes often drain through small drain ways called "punctum" near the middle of your lower eyelid. They then drain into your nose, contributing to runny noses. When you choke on food, your eyes water because nasal pressure is reversed sending tears back to your eyes the same way.
Peeling onions produce tears because they contain a chemical irritant called Syn-propanethial-S-oxide which stimulates a gland in your eye.
According to a Christian legend, carnations first appeared on Earth as Jesus carried the Cross. The Virgin Mary shed tears at Jesus' plight, and carnations sprang up from where her tears fell. Thus the pink carnation became the symbol of a mother's undying love.
In Roman times diamonds were worn only by men. Soldiers believed they were the hardened tears of the gods and wore them around their necks in battle to bring courage.
According to Spanish folklore, King Philip III of Spain was looking out of his palace window when he saw a man reading a book by the roadside. The man was laughing so heartily that tears ran down his cheeks. "That man" said the king "is either crazy or reading Don Quixote."
There was no fairy godmother in Grimm's Cinderella. Instead her ballgown was supplied by small hazel tree watered with Cinderella's tears.
Babies' eyes do not produce tears until the baby is approximately six to eight weeks old.
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| Pixiebay |
The composition of tears is similar to saliva - they're both made of proteins, salt and hormones.
The smell of a woman's tears reduces men's arousal and testosterone levels.
We have three types of tears - basal, reflex and psychic. Psychic tears, the ones we produce when we are sad, have a different chemical make up than the other two and contain a natural pain relief, leucine enkephalin, which is perhaps why we feel better after we cry.
Tears in your eyes often drain through small drain ways called "punctum" near the middle of your lower eyelid. They then drain into your nose, contributing to runny noses. When you choke on food, your eyes water because nasal pressure is reversed sending tears back to your eyes the same way.
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| By Miika Silfverberg (MiikaS) from Vantaa, Finland - Flickr |
Peeling onions produce tears because they contain a chemical irritant called Syn-propanethial-S-oxide which stimulates a gland in your eye.
According to a Christian legend, carnations first appeared on Earth as Jesus carried the Cross. The Virgin Mary shed tears at Jesus' plight, and carnations sprang up from where her tears fell. Thus the pink carnation became the symbol of a mother's undying love.
In Roman times diamonds were worn only by men. Soldiers believed they were the hardened tears of the gods and wore them around their necks in battle to bring courage.
According to Spanish folklore, King Philip III of Spain was looking out of his palace window when he saw a man reading a book by the roadside. The man was laughing so heartily that tears ran down his cheeks. "That man" said the king "is either crazy or reading Don Quixote."
There was no fairy godmother in Grimm's Cinderella. Instead her ballgown was supplied by small hazel tree watered with Cinderella's tears.
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