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Human body

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“No man has the right to be an amateur in the matter of physical training. It is a shame for a man to grow old without seeing the beauty and strength of which his body is capable.” ― Socrates

Contributed by Mary Joseph

"I see technology as being an extension of the human body." -David Cronenberg

Contributed by Mary Joseph

25,000,000 cells of you died while you read this sentence (but your body made 30 billion more of 'em so don't worry!)

Contributed by Sarah Barela

All the blood vessels in a human body

Contributed by Sara Cornett

Every day a typical human being loses roughly 60-100 strands of hair

Contributed by Kristin Redmann

Nerve impulses to and from the brain travel as fast as 170 mph!

Contributed by Kristin Redmann

The main component in artificial estrogen, used by women going through menopause, is urine from a pregnant horse. The things we will take to make us feel better. Crazy!!

Contributed by Anna Jirasek

Different body types of different sports

Contributed by Empriś Durden

Different body types of women; all beautiful.

Contributed by Empriś Durden

When our body detects low oxygen, our nervous system is activated to do something about it by yawning. When danger was near, our primitive ancestors would yawn, activating there nervous system and become alert. Others around them would follow and alert themselves by yawning to prepare for danger.

Contributed by Alyssa Green