Human Body Fun Facts
The Brian
By age 18, the human brain stops growing. As a matter of fact, the human brain after age 18 begins to lose more than 1,000 brain cells each day. Do not fear: since the fully developed brain has over 100 billion cells, at the rate of losing 1,000 cells each day, it will take 300,000 years before your brain is out of cells.
An adult human’s brain weighs 3 pounds. The heaviest on record weighed 5 pounds.
Humans use about 100% of their brain. Modern MRI scans proved that people use just about their entire brain even when they are sleeping. It is a myth that humans use only 10% of their brains.
The human brain is capable of executing 10 quadrillion calculations per second--no computer today can match the human brain!
Body Production!
The average human produces 10,000 gallons of saliva in a lifetime.
The human body produces and destroys about 900 million blood cells every minute; that is, about 15 million every second.
The human body sheds about 40 pounds of skin in a life time.
A Sneeze
A sneeze can reach 100 mph, a cough only 60 mph.
It is impossible to sneeze without blinking your eyes.
Miscellaneous Body Facts
Children have more bones than adults (children: 300; adults: 206).
The human eye blinks over 4 million times a year.