“Most smiles are started by another smile.” Frank A. Clark
https://blog.bufferapp.com/the-science-of-smiling-a-guide-to-humans-most-powerful-gesture
That’s why we often feel happier around children – they smile more. On average, they do so 400 times a day. Whilst happy people still smile 40-50 times a day, the average of us only does so 20 times…
http://www.completelyyou.com/feature/import/smiling_facts/#.VT4UOSFViko
Did you know it takes 17 muscles to smile and 43 to frown? Here, 10 surprising truths about grinning.
Some studies show that beaming can benefit your blood pressure levels. Add a laugh and you’ll also slim your middle — the movement exercises your abs, diaphragm, shoulders and heart. Scientists at Vanderbilt University found that laughing can stoke your calorie burn by up to 20 percent…
Fact: The average woman smiles approximately 62 times a day. In that same day, a man only flashes his pearly whites a mere eight times…
Research conducted at the University of Illinois has suggested that people who generally feel happy and smile more often have a longer life expectancy of nearly a decade. Another study looked at baseball cards. The Wayne State University scientists concluded that those athletes who were flashing their pearly whites in their pictures lived on average seven years longer than those who didn’t…
Research shows that the simple act of turning your mouth up, whether authentic or not, can help release endorphins, feel-good hormones. Serotonin, a chemical that’s a natural stress-reducer, is also increased when you smile…
Every time you flash your teeth, your body produces greater quantities of antibodies and T-cells (or white blood cells), which may give your immune system a huge power boost…
(Photo taken 4/25/2015.)
All Things Chronic 
That’s so true.. A kid’s smile is the most heartfelt carefree one. I wish we could be more like them.
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This is true! I try to be happy around my son as much as possible. I’ve noticed he picks up on my emotions.
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