The human brain is more active during sleep than during the day.
28
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
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
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
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
Mushrooms are more closely related to humans than they are to plants.
47
After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139