The notion that you can smile your way to happiness is an enduring one.
Back in the 1800s, Charles Darwin was among the first to come up with what modern scientists further developed into the “facial feedback hypothesis.” That’s the idea that smiling can make you happier and frowning can make you sadder or angrier — that changing your facial expression can intensify or even transform your mood.
But researchers are now finding that this phenomenon may be more complicated than they once thought. A recent study that reviewed around 50 years of data, including the results of nearly 300 experiments testing the facial feedback theory, has found that if smiling boosts happiness, it’s only by a tiny bit.
That debate over whether the simple act of moving one’s facial muscles into the shape of a smile can make one feel happier has grown especially heated in the past few years. In another study, published in 2016, 17 labs around the globe failed to replicate a seminal piece of research that had originally demonstrated a link between smiling and emotion.
Read the whole story: NPR