Your body is creating and killing about 2.4 million red blood cells per second.
17
An average heart beats 100,000 times a day, pumping some 2,000 gallons of blood through its chambers. Over a 70-year life span, that adds up to more than 2.5 billion heartbeats.
73
One human hair can support 3 ounces.
191
The adult human brain weighs about 3 pounds (1,300-1,400 g).
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The human brain has the capacity to store everything that you experience.
4k
The average sperm cell swims at 8 inches per hour.
76
The human body contains over a billion miles of DNA.
147
The human brain doesn't stop developing until about 25 years old.
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