Our Right Lungs takes more air than our left lung.
194
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
Women have about four times as many foot problems as men; lifelong patterns of wearing high heels often are the culprit.
111
Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15
It takes about 20 seconds for a red blood cell to circle the whole body.
102
Your heart will pump about 212 million liters in its lifetime.
26
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99