Your happiness can spread throughout your social sphere, if you believe the results of a recent study published in the BMJ, which suggests that your cheer can lift the spirits of your friends, your friends' friends, and even your friends' friends' friends. Researchers used data from the two-decade-strong Framingham Heart Study, an ongoing study that tracks the health and well-being of more than 5,000 Americans, and they found that one person's cheer can spread up to three degrees in a social network. Smile, and the world really does smile with you, kind of!
Watch our new series!
The Science of Us
This Explains Why Men Always Think Women Are FlirtingView all videos
Most Viewed Stories
Every Weekend Should Be a 3-Day Weekend
Does Reading Literature Really Beef Up Your Brain?
Why Straight Men Have Sex With Each Other
Woman Once Incapable of Feeling Pain Now Pretty Much in Constant Pain After Childbirth
A Composer Hopes His Music Will Put You to Sleep
Most Viewed Stories
Monica Foy, the Victim of a Terrifying Right-Wing Internet-Shaming, Speaks Out
Miley Cyrus’s Dead Petz Is Hard to Like, or Even Endure
Some Hero Drew Game of Thrones People As Bob’s Burgers People
What It Means to Be Thick and Fit on Instagram
Listen to Janet Jackson’s Very Lovable ‘Unbreakable’
Why Lonely People Stay Lonely
Are You a Head Person or a Heart Person?
So Apparently There Are 4 Kinds of Introversion
What Do We Give Up When We Become Freedom-Seeking Entrepreneurs? A Lot, Actually.
Positive Thinking Doesn’t Work; Here’s What Does
Latest News from Science of UsWoman Once Incapable of Feeling Pain Now Pretty Much in Constant Pain After Childbirth
Poor thing.Every Weekend Should Be a 3-Day Weekend
Science confirms: You need a break.A Composer Hopes His Music Will Put You to Sleep
An eight-hour lullaby for grown folks.Does Reading Literature Really Beef Up Your Brain?
A new study offers hints.These Scientists Just Got a $4 Million Grant to Study the World’s Nicest Humans
The launch of a three-year scientific inquiry on the morally superior.Everyone Dreams (or Do They?)
A Depressing Reason Sixth-Grade Girls Score Lower in Math Than Boys
The power of hidden biases.You Are Probably Pretty Self-Centered, But So Is Everyone Else
A behavioral scientist on how you see you versus how everyone else sees you.What Out-of-Body Experiences Teach About Our Sense of Self
Eerie.Nervous Employees Are Taking ‘Stealth Vacations’ Now
So much guilt over taking a day or two off.
Revisiting the famed neurologist's work after his death this weekend.A Field Guide to Dwelling on Your Failures
Moving on as quickly as possible isn't necessarily the best strategy.We Are All Russell Wilson, Believer in Nonsense
It's just as likely he got bamboozled as it is that he's the bamboozler.Some People Can’t Form Pictures in Their Heads
Imagine that.A Deep Dive Into the Blockbuster Study That Called Into Doubt a Lot of Psych Research
Some really alarming results.The Selfish Reason to Take 5 Minutes to Do Someone a Favor
How success and generosity are linked.Impatient People Can’t Wait to Procrastinate
The kind of people who want stuff now now now also tend to be the kind of people who put off boring tasks, like going to the bank.What Do Conspiracy Theories Do to Us?
A new experiment sheds light.This Explains Why Men Always Think Women Are Flirting
It's something called sexual misperception — watch the latest Science of Us animated video to find out more.What It’s Like to Lose 350 Pounds
And be blind. And be a carnival worker.