You can only remember 4 things at a time.
31
The average person falls asleep in seven minutes.
115
‘Old people smell’ is actually caused by a chemical, 2-nonenal, that old people secrete through their skin
8
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
Only about 2% of the world population has green eyes.
36
Thrity-five percent of the people who use personal ads for dating are already married.
102
If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15