The average sperm cell swims at 8 inches per hour.
76
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
There's 100 trillion good bacteria living in your body.
17
A human being loses an average of 40 to 100 strands of hair a day.
133
Your thumb is about the same size as your nose.
124
Most of us have microscopic, worm like mites named Demodex that live in our eyelashes and have claws and a mouth.
-137
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
32
