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Why does smiling increase life expectancy?
Thanks for asking.
An often cited estimate suggests that children smile an average of 400 times per day.
Meanwhile after reaching adulthood that figure drops to just 50 times even for the happiest of us.
For most adults it's more like 20 times.
Now, of course, most of the time we smile involuntarily in response to something bringing us joy or making us laugh.
But it's also possible to smile intentionally, which can actually bring on a whole host of health and wellness benefits.
It relieves stress and improves your mood to start with.
Even when forcing yourself to smile rather than doing it in reaction to anything in particular.
When it comes to physical health.
It releases certain neurotransmitters which boost the immune system, reduces pain through endorphins and seems to lower blood pressure too, although further research is needed to prove that last part.
And the main takeaway should be that these effects can also lead to increased life expectancy.
A now famous study by researchers at Wayne State University in Detroit looked into the relationship between frequent intense smiling and life expectancy.
Its findings were published in Psychological Science Journal in 2010.
The study was based on 230 photographs of 1950s Major League Baseball players, with each pic rated for smile intensity as either no smile, partial smile or full smile.
Decades later, many of the players had passed away and there was actually a correlation between their death age and smile intensity in their old photos.
Those who didn't smile died at an average age of 72, partial smilers at 75, while those with the fullest smiles lived on to 80.
Why do some people tend to smile more than others then?
That's an excellent question.
Could it be down to imitating others, or how we're brought up?
Most likely it's a combination of effects, and cultural attitudes towards smiling can also come into play.
In some places, smiling is viewed favourably, while elsewhere it can see a person perceived as being less intelligent or competent.
If you want to smile more, try focusing on things that make you feel good on a daily basis and smiling more consciously.
Even if you have to force yourself at the beginning, you'll see it starts to come naturally after a while.
Simply activating your facial muscles is enough to send a powerful signal to the brain and activate the emotions of joy and happiness.
There you have it.
Now you know why smiling increases life expectancy.
In under three minutes, we answer your questions and help you understand the true meaning behind the trends, concepts and acronyms that are making headlines.
Listen along and you will really know for sure.
