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Did you know?
Your heart beats over 36 million times a year.
Did you know?
The human body produces and destroys 15 million blood cells every second.
Did you know?
Cyanide works by making the human body unable to use oxygen.
Did you know?
Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.
Did you know?
The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.