A smile is a facial expression formed by flexing those muscles most notably near both ends of the mouth. The smile can also be found around the eyes (See 'Duchenne smile' below). Among humans, it is customarily an expression denoting pleasure, happiness, or amusement, but can also be an involuntary expression of anxiety, in which case it is known as a grimace. Cross-cultural studies have shown that smiling is used as a means of communicating emotions throughout the world.[1] Happiness is most often the motivating cause of a smile. Among animals, the exposure of teeth, which may bear a resemblance to a smile, is often used as a threat or warning display - known as a snarl - or a sign of submission. In chimpanzees, it can also be a sign of fear. The study of smiles is a part of gelotology, psychology, and linguistics, comprising various theories of affect, humor, and laughter.
Many biologists think the smile originated as a sign of fear. Primalogist Signe Preuschoft traces the smile back over 30 million years of evolution to a "fear grin" stemming from monkeys and apes who often used barely clenched teeth to portray to predators that they were harmless. Biologists believe the smile has evolved differently among species and especially among humans.
Biology is not the only academic discipline that interprets the smile. Those who study kinesics view the smile as an affect display. It can communicate feelings such as love, happiness, pride, contempt, and embarrassment.
Although many different types of smiles have been identified and studied, researchers have paid particular attention to an anatomical distinction first recognized by French physician Guillaume Duchenne. While conducting research on the physiology of facial expressions in the mid-nineteenth century, Duchenne identified two distinct types of smiles. A Duchenne smile involves contraction of both the zygomatic major muscle (which raises the corners of the mouth) and the orbicularis oculi muscle (which raises the cheeks and forms crow's feet around the eyes). A non-Duchenne smile involves only the zygomatic major muscle. Many researchers believe that Duchenne smiles indicate genuine spontaneous emotions since most people cannot voluntarily contract the outer portion of the orbicularis oculi muscle.
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Top 10 Reasons to Smile
Smiling is a great way to make yourself stand out while helping your body to function better. Smile to improve your health, your stress level, and your attractiveness. Smiling is just one fun way to live longer read about the others and try as many as you can.
1. Smiling Makes Us Attractive
We are drawn to people who smile. There is an attraction factor. We want to know a smiling person and figure out what is so good. Frowns, scowls and grimaces all push people away -- but a smile draws them in.
2. Smiling Changes Our Mood
Next time you are feeling down, try putting on a smile. There's a good chance you mood will change for the better. Smiling can trick the body into helping you change your mood.
3. Smiling Is Contagious
When someone is smiling they lighten up the room, change the moods of others, and make things happier. A smiling person brings happiness with them. Smile lots and you will draw people to you.
4. Smiling Relieves Stress
Stress can really show up in our faces. Smiling helps to prevent us from looking tired, worn down, and overwhelmed. When you are stressed, take time to put on a smile. The stress should be reduced and you'll be better able to take action.
5. Smiling Boosts Your Immune System
Smiling helps the immune system to work better. When you smile, immune function improves possibly because you are more relaxed. Prevent the flu and colds by smiling.
6. Smiling Lowers Your Blood Pressure
When you smile, there is a measurable reduction in your blood pressure. Give it a try if you have a blood pressure monitor at home. Sit for a few minutes, take a reading. Then smile for a minute and take another reading while still smiling. Do you notice a difference?
7. Smiling Releases Endorphins, Natural Pain Killers and Serotonin
Studies have shown that smiling releases endorphins, natural pain killers, and serotonin. Together these three make us feel good. Smiling is a natural drug.
8. Smiling Lifts the Face and Makes You Look Younger
The muscles we use to smile lift the face, making a person appear younger. Don't go for a face lift, just try smiling your way through the day -- you'll look younger and feel better.
9. Smiling Makes You Seem Successful
Smiling people appear more confident, are more likely to be promoted, and more likely to be approached. Put on a smile at meetings and appointments and people will react to you differently.
10. Smiling Helps You Stay Positive
Try this test: Smile. Now try to think of something negative without losing the smile. It's hard. When we smile our body is sending the rest of us a message that "Life is Good!" Stay away from depression, stress and worry by smiling.
Top 10 Reasons to Smile
Smiling is a great way to make yourself stand out while helping your body to function better. Smile to improve your health, your stress level, and your attractiveness. Smiling is just one fun way to live longer read about the others and try as many as you can.
1. Smiling Makes Us Attractive
We are drawn to people who smile. There is an attraction factor. We want to know a smiling person and figure out what is so good. Frowns, scowls and grimaces all push people away -- but a smile draws them in.
2. Smiling Changes Our Mood
Next time you are feeling down, try putting on a smile. There's a good chance you mood will change for the better. Smiling can trick the body into helping you change your mood.
3. Smiling Is Contagious
When someone is smiling they lighten up the room, change the moods of others, and make things happier. A smiling person brings happiness with them. Smile lots and you will draw people to you.
4. Smiling Relieves Stress
Stress can really show up in our faces. Smiling helps to prevent us from looking tired, worn down, and overwhelmed. When you are stressed, take time to put on a smile. The stress should be reduced and you'll be better able to take action.
5. Smiling Boosts Your Immune System
Smiling helps the immune system to work better. When you smile, immune function improves possibly because you are more relaxed. Prevent the flu and colds by smiling.
6. Smiling Lowers Your Blood Pressure
When you smile, there is a measurable reduction in your blood pressure. Give it a try if you have a blood pressure monitor at home. Sit for a few minutes, take a reading. Then smile for a minute and take another reading while still smiling. Do you notice a difference?
7. Smiling Releases Endorphins, Natural Pain Killers and Serotonin
Studies have shown that smiling releases endorphins, natural pain killers, and serotonin. Together these three make us feel good. Smiling is a natural drug.
8. Smiling Lifts the Face and Makes You Look Younger
The muscles we use to smile lift the face, making a person appear younger. Don't go for a face lift, just try smiling your way through the day -- you'll look younger and feel better.
9. Smiling Makes You Seem Successful
Smiling people appear more confident, are more likely to be promoted, and more likely to be approached. Put on a smile at meetings and appointments and people will react to you differently.
10. Smiling Helps You Stay Positive
Try this test: Smile. Now try to think of something negative without losing the smile. It's hard. When we smile our body is sending the rest of us a message that "Life is Good!" Stay away from depression, stress and worry by smiling.
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