By weight, Bone is five times stronger than steel.
417
40% of people who are rejected in romantic love slip into clinical depression.
72
On average, someone in the US suffers a stroke every 40 seconds; someone dies every 3 minutes from stroke.
57
On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
161
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
There are more than 150 million sheep in Australia, and only some 20 million people.
247
Dutch, on average are the tallest people.
187
Nearly half of the entire world's adult population has never drunk alcohol.
12