Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Unconsciousness will occur after 8-10 seconds after loss of blood supply to the brain.
93
The human eye blinks an average of 4,200,000 times a year.
233
It is possible for you to survive even after the removal of the spleen, the stomach, one kidney, one lung, 75% of the liver, 80% of the intestines, and almost every organ from the pelvic and groin area.
218
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
In ancient Egypt, priests plucked EVERY hair from their bodies, including their eyebrows and eyelashes.
130
We forget why we have entered a room because passing through doors creates an ‘event boundary’ causing the brain to file away what we were just thinking about.
26
The human brain doesn't stop developing until about 25 years old.
102