Only 2% of the Earth's population are natural redheads.
13
Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104
95% of people feel uncomfortable when the TV volume is an odd number.
392
Studies suggest that people who appear to be constantly distracted have more "working memory" and "sharper brains".
13
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
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The “cheerleader effect”, the theory that girls look more attractive in groups, is scientifically proven.
8
The Japanese commonly put ketchup on their rice.
16