2006-07-25 21:44:56 · 11 answers · asked by Slip out da bak 2 in Social Science ➔ Psychology
because we're happy about us(we achieved something)
2006-07-25 21:48:41 · answer #1 · answered by l3n34 2 · 0⤊ 0⤋
One theory is as follows:
Other great apes (and many other higher primates) have a nearly identical submission expression: they pull their lips back to reveal their teeth. This signifies that they are not a threat. The theory surmises that since this is ubiquitous among apes, it is likley to be a development from common ancestor, which would also be a common ancestor of ours.
The theory suggests that a smile is a development of this submissive expression. It states "I am not a threat". We smile to put people at ease. We smile to gain peoples trust. This evolved with us to be a general non-hostile expression, and thus became asociated with things we do while we are relaxed and at ease (fun & games, humour etc). Hence why we smile when we are happy (and thus relaxed, at ease, not threatened, safe etc).
This is just a theory of course, but it does make sense.
2006-07-26 04:57:44 · answer #2 · answered by Entwined 5 · 0⤊ 0⤋
Because we have emotions...? Happy=smile, Sad=frown, just a form of expression.
2006-07-26 04:49:58 · answer #3 · answered by Anonymous · 0⤊ 0⤋
I smile b/c it's my way of telling the world I'm happy.
2006-07-26 04:49:48 · answer #4 · answered by Cy 5 · 0⤊ 0⤋
Because it takes more muscle's to frown.
2006-07-26 04:50:38 · answer #5 · answered by Anonymous · 0⤊ 0⤋
because i just got 2 points!!
2006-07-26 05:04:42 · answer #6 · answered by Anonymous · 0⤊ 0⤋
for inner fulfillment and to live longer
2006-07-26 04:49:53 · answer #7 · answered by doublesyl4eva 2 · 0⤊ 0⤋
to express our emotions (happiness)
2006-07-26 06:42:47 · answer #8 · answered by !i!i!i!FaRnAzA!i!i!i!i 3 · 0⤊ 0⤋
to relax our muscles and because we are happy.
2006-07-26 05:09:47 · answer #9 · answered by gracie 1 · 0⤊ 0⤋
because we feel "satisfied"...in a certain way..no specific way..but in one way or another..he he he..
2006-07-26 04:54:15 · answer #10 · answered by miss_eyez 3 · 0⤊ 0⤋