The human brain is more active during sleep than during the day.
28
If the human eye was a digital camera, it would have 576 megapixels.
25
An average heart beats 100,000 times a day, pumping some 2,000 gallons of blood through its chambers. Over a 70-year life span, that adds up to more than 2.5 billion heartbeats.
73
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
A human brain produces as many as 12,000 to 50,000 thoughts per day, depending on how deep a thinker a person is.
23
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
31
Your heart will pump about 212 million liters in its lifetime.
26