The human body contains over a billion miles of DNA.
147
The average sperm cell swims at 8 inches per hour.
76
One human hair can support 3 ounces.
191
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Enamel is hardest substance in the human body.
61
Women have about four times as many foot problems as men; lifelong patterns of wearing high heels often are the culprit.
111
Yawns are more contagious among people with closer relationships.
163
The human brain has the capacity to store everything that you experience.
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