Intelligent people have more zinc and copper in their hair.
233
Studies show that the risk of a “secret love” being revealed heightens romantic feelings for the partners, thanks to increased levels of phenylethylamine (PEA).
99
The Japanese commonly put ketchup on their rice.
16
Just one in three consumers pays off his or her credit card bill every month.
27
A person will create enough saliva to fill two average size swimming pools during his lifetime.
191
Awarding people money for doing well in IQ tests causes them to score better, $10 increased people's score by an average of more than 20 IQ points. IQ tests don’t just measure intelligence - they also measure effort.
9
The average American eats at McDonalds more than 1,800 times in their life.
52