By weight, Bone is five times stronger than steel.
417
On average, someone in the US suffers a stroke every 40 seconds; someone dies every 3 minutes from stroke.
56
In 2005, 25 percent of Americans over the age of 50 played video games, an increase from nine percent in 1999.
82
The Japanese, on average, are the shortest people.
320
On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
160
Babies crawl an average of 200m a day.
212
Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104
Dutch, on average are the tallest people.
187