You take very few muscles to smile and many more muscles are used when you swim.
This depends on which elements of a smile you are refering to. The act of raising the corners of your mouth is done by three muscles, primarily the zygomaticus major and risorius muscles and aided by the buccinator muscle. If you squint your eyes while you smile you may also use orbicularis oculi. If you scrunch your nose with your smile then you may also use your procerus and nasalis muscle. If your forehead wrinkles and eyebrows raise then your occipitofrontalis helps as well. For someone with a very expressive smile, they are likely using alot of their facial muscles (up to 15, the rest would oppose a smile and cause frowning).
25 Muscles
Over 200 muscles are used!
Ibuprofen
It is unknown the exact number of muscles used to whistle. However, there are two muscles that are used the most, and they are the orbicularis oris and buccinator muscles.
It take more facial muscles to frown than to smile.
It takes about 17 muscles to smile and 43 to frown
There are 33 muscles in a human face. And no, it doesn't take more muscles to frown than to smile.
It takes 43 muscles to frown and only 17 to smile. So smile!
49 muscles to cry, 12 muscles to smile and 6 muscles to slap
Some claim it takes 43 muscles to frown and 17 to smile, but open Aunt Milda's chain letter and you might be surprised to learn it takes 26 to smile and 62 to frown. And some naysayers claim it's quite the opposite, that in fact it takes more muscles to smile than to frown.
I am not sure, but I've heard it said that it takes far fewer muscles to produce a smile. So maybe if you smile more you will have fewer wrinkles.
It takes 43 muscles to frown, but only 17 to smile.
It was claimed by ( Be Happy) types it takes Five muscles to smile (not laugh) and 37 to frown- conserve energy!
17 to smile 43 to frown Me and my friend Rasheed Boyd had it correct
It may take up to 100 times more energy to chew than when you smile.
43 "muscles" are used to frown...I'm not aware of bones used to frown