In ancient Egypt, priests plucked EVERY hair from their bodies, including their eyebrows and eyelashes.
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Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
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
By weight, Bone is five times stronger than steel.
417
The human body contains over a billion miles of DNA.
147
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
One human hair can support 3 ounces.
191
An average heart beats 100,000 times a day, pumping some 2,000 gallons of blood through its chambers. Over a 70-year life span, that adds up to more than 2.5 billion heartbeats.
73