In one day an average person will take about 18,000 steps.
55
Intelligent people have more zinc and copper in their hair.
233
One in 500 humans has one blue eye and one brown eye.
145
Humans are capable of running 40 mph according to a study by bio-mechanical expert Dr. Matthew Bundle. Today's fastest man, Usain Bolt, has a top speed of 28 mph.
34
The average woman uses her height in lipstick every 5 years.
146
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11