There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
32
Your heart will pump about 212 million liters in its lifetime.
26
The average sperm cell swims at 8 inches per hour.
76
You see your nose at all times, your brain just chooses to ignore it.
30
In Ancient Greece, small penises were desirable, and big ones were for ‘old men and barbarians’
22
You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
17
In one day, adult lungs move about 10,000 litres of air.
11