A person can live without food for about a month, but only about a week without water.
156
Your heart will pump about 212 million liters in its lifetime.
26
It takes approximately 12 hours for food to entirely digest.
93
If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
On average a woman has 4 sexual partners in her lifetime.
-143
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
Pain occurs when sounds are above 130 db.
123
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22