2006-06-30 01:36:52 · 21 answers · asked by wadapav_1205 1 in Science & Mathematics ➔ Biology
WELL I SMILE WHEN I AM GASSY
2006-06-30 01:39:30 · answer #1 · answered by Anonymous · 0⤊ 0⤋
In physiology, a smile is a facial expression formed by flexing muscles most notably near both ends of the mouth, but also around the eyes. Among humans, it is customarily an expression of pleasure or amusement, but can also be an involuntary expression of anxiety, in which case it can be known as a grimace. There is much evidence that smiling is a normal reaction to certain stimuli and occurs regardless of culture. Happiness most often causes the smile to occur, though. Many studies indicate that smiling is an innate reaction, as children blind from birth, and even human fetuses smile; however feral children generally do not smile, perhaps lending evidence to the contrary. Among animals, the exposure of teeth, which may bear a resemblance to a smile, are often used as a threat - known as a snarl - or a sign of submission.
Smiling not only changes a facial expression, but can also make the brain produce endorphins which reduce physical and emotional pain, and give a greater sense of well-being.
2006-06-30 08:44:06 · answer #2 · answered by Anonymous · 0⤊ 0⤋
The limbic system in our brain is what controls our emotional reward. When we are emotionally stimulated, the brain sends an action potential to two muslces:
* Oribiculus Oculi (Sphincter muscle around the mouth)
* Zygomaticus Major (Muscle that pulls the corners of your mouth up)
Smiling also releases a neurotransmitter in our brain called Dopamine. This neurohormone is released by the hypothalamus and is a feel-good transmitter. Try and be angry with a smile, its pretty tough to do!
2006-06-30 08:52:38 · answer #3 · answered by Emerson 5 · 0⤊ 0⤋
We see things, or someone we like and it send a message to our brain to smile so we do it! Smiling is good!
By the way, I'm not smiling while I'm answering this question.
2006-06-30 08:39:52 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Happiness
2006-07-07 00:04:43 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Happiness
2006-06-30 08:39:35 · answer #6 · answered by Anonymous · 0⤊ 0⤋
When we feel happiness in our hearts and souls, I think then it triggers our happy chemicals in the brain and the brain sends a message to our mouths and smiling muscles
2006-06-30 08:43:09 · answer #7 · answered by Ilovechristjesustheking 3 · 0⤊ 0⤋
I smile when I see something funny or hear, You make me smile
when you ask the question
2006-06-30 08:56:25 · answer #8 · answered by boy_jam_arch 6 · 0⤊ 0⤋
We smile to show amusement or pleasure.
2006-06-30 09:06:26 · answer #9 · answered by dearheavenlyangel 2 · 0⤊ 0⤋
I don't know about you but I smile because I have got salvation through JESUS CHRIST.
2006-06-30 08:44:30 · answer #10 · answered by illprayforyou 5 · 0⤊ 0⤋
It's natural. Plus we got to let our wife know that she's doing the things that makes her *The* woman.
2006-06-30 08:40:40 · answer #11 · answered by smile4763 4 · 0⤊ 0⤋