The human eye blinks an average of 4,200,000 times a year.
233
You can't tickle yourself.
29
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
It takes about 20 seconds for a red blood cell to circle the whole body.
102
In one day, adult lungs move about 10,000 litres of air.
11
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
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
Our Right Lungs takes more air than our left lung.
194