The researchers found that none of the people in the top 10 of smile strength had divorced, while 4 in 10 of those in the bottom 10% of smile strength had a marriage that ended.
They did a second study where they asked people over the age of 65 to show pictures from their childhood. The average age in the pictures was 10 years old. Again, the researchers found that only 11% of the biggest smilers had divorced, while 31% of the frowners had ended at least one marriage.
Why would this be? Matthew Hertenstein, a psychologist who led the study proposes several possible explanations:
• It could be that smiling represents a “positive disposition towards life.”
• Perhaps smiling people attract other happy people and two happier people are more likely to have a long-lasting marriage.
• Maybe people who smile more often attract more friends and a larger support network that makes it more likely they will keep a marriage healthier.
• Or maybe it’s just that people who smile for a picture when they are told to say “cheese” have more compliant personalities that might make marriage easier.
Whatever the reason, if you are planning to get married, you might want to see some old childhood photos before you buy the ring!