The human brain has the capacity to store everything that you experience.
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The largest cell in the human body is the female egg and the smallest is the male sperm.
682
Cracking your knuckles does not actually hurt your bones or cause arthritis. The sound you hear is just gas bubbles bursting.
18
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
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It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
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An Indian man known as "Snake Manu" can put small snakes, including deadly cobras, into his mouth and pass them out through his nose.
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The adult human brain weighs about 3 pounds (1,300-1,400 g).
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The average sperm cell swims at 8 inches per hour.
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