Why, even if you're not weary, do you yawn when someone else does? There are several hypotheses as to why yawning is contagious, but one of the most popular is that it demonstrates empathy. People who are less inclined to demonstrate empathy, such as toddlers who haven't yet learned it or young people with autism, are also less likely to yawn in response to someone else's.
Related Facts
Fun Fact! Throughout the comic books, Superman dies several times.
"I love you" has a more emotional effect when it is whispered into the left year.
Fun Fact! Dunce caps used to be signs of intelligence
Stuck with a Song? Sing the end of the song to get it out of your head.
Fun Fact! Spain has below-average high school qualifications
There is a reason why you don't see yellow in an airplane.
Did you Know? Men and Women dream different!
Why is there so much hype for the iPhone?
Fun Fact! George Washington Never Had Wooden Teeth
Fun Fact! There is a Museum of Haunted dolls
Fun Fact! The brain actually feels rejection as a physical pain.
Fun Fact! At NYU, James Franco received a "D" in his acting class.
Fun Fact! Boys fight more than girls.
Fun Fact! Cowboys Didn't Actually Wear Cowboy Hats
Fun Fact! For 20 years a cat served as mayor of Alaskan town
Addiction to love is as strong as addiction to drugs or nicotine.
Did you Know? Some people only dream in black and white.
Your nerve cells function better.
Fun Fact! Your sneeze is really strong.
Fun Fact! Real chocolate can prevent tooth decay
Fun Fact! Egyptians used to worship cats
Fun Fact! We want to breach additional rules when one looks too stringent.
Fun Fact! The first person convicted of speeding was driving at eight miles per hour.
Fun Fact! Kissing is an exercise.
Fun yet Serious Fact! Ice cravings are a sign of iron insufficiency.