Most people know it takes 25 fewer musles to smile than it does to frown.
The act of smiling has numerous positives attached to it. Not only does it make you look happy and approachable, but it also releases endorphins, making it a surefire way to boost your mood.
Sadly, it's emerged that smiling is not all it's cracked up to be.
A recent experiment found that smiling in photos can add up three and half years to your face.
This is because smiling apparently exaggerates the appearance of wrinkles around the eyes.
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However, if your appearance in photos does matter to you, there are some alternative facial expressions which will help reduce the appearance of wrinkles.
After the research was conducted, it was found the best faces to adopt are either a neutral expression, or a "pouting" surprised one.
One thing which was rather sweet and reassuring was the participants said they still believed smiling makes people look younger.
So there you go, even if you're having the time of your life, don't let it show on your face.
