By weight, Bone is five times stronger than steel.
417
Your thumb is about the same size as your nose.
124
Unconsciousness will occur after 8-10 seconds after loss of blood supply to the brain.
93
The human brain has the capacity to store everything that you experience.
4k
After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139
The human eye blinks an average of 4,200,000 times a year.
233
All 13 minerals necessary for human life can be found in alcohol beverages.
282
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11