The human body is made up of approximately 37.2 trillion cells.
Nerve impulses in the body travel at a speed of up to 170 miles per hour.
Human bones are stronger than steel, ounce for ounce.
The average person produces enough saliva in their lifetime to fill two swimming pools.
The human brain generates enough electricity to power a small light bulb.
The human body has about 60,000 miles of blood vessels, enough to circle the earth over two times.
The human heart can create enough pressure to squirt blood up to 30 feet.
The human body has more bacteria cells than human cells.
Human eyes are capable of distinguishing around 10 million different colors.
The strongest muscle in the human body is the masseter, or jaw muscle.
The human nose can remember around 50,000 different scents.
The human brain is composed of 75% water.
Human teeth are just as strong as shark teeth.
The smallest bone in the human body is the stapes bone in the ear.
Humans shed around 600,000 particles of skin every hour.
The tongue is the only muscle in the body that is attached at one end.
Humans blink approximately 15,000 times per day.
The average human head weighs around 8 to 12 pounds.
The surface area of the human lungs is roughly equal to the size of a tennis court.
Human hair is almost indestructible and can withstand acid and fire.
The skin is the largest organ in the human body.
The human body has the ability to heal broken bones and repair damaged tissue.
Humans are the only animals that produce tears when they are emotionally overwhelmed.
The human body is constantly producing new red blood cells, replacing old ones.
The human liver can regenerate itself completely, even if 75% of it is removed.
The human nose can detect more than one trillion different smells.
The human body produces enough heat in 30 minutes to boil half a gallon of water.
The human body has the capability to produce a wide range of unique sounds and vocalizations.
Humans are the only animals that blush when they are embarrassed.
The human body is capable of surviving without food for weeks, but only a few days without water.
The human body is taller in the morning than in the evening, due to the compression of spinal discs throughout the day.
The human body has the ability to differentiate between hundreds of different tastes.
Human blood vessels can stretch over 60,000 miles when laid end to end.
Humans have a unique fingerprint pattern that is completely individual.
The human brain is more active when asleep than when watching television.
Human skin cells are completely regenerated every 27 days.
The human body has the power to produce a unique odor based on dietary choices.
The human body can produce a variety of distinct sounds through vocal cords.
Humans are the only animals that can voluntarily hold their breath.
The human body has the ability to adapt to different climates and environments.
Humans are capable of feeling emotions that can physically affect the body, such as increased heart rate when scared.
The human body has a natural defense mechanism called sneezing, which can expel particles and germs from the respiratory system.
Humans have the ability to control their body temperature through sweating or shivering.
The human body has an intricate system of lymph nodes that help fight infections.
Humans have the unique ability to use language and communicate complex thoughts and ideas.
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