Human Body
Fascinating facts about our own biology, from quirky reflexes to surprising capabilities.
Did You Know?
Your body contains about 0.2 milligrams of gold.
Trace amounts of gold are present in the human body, primarily in blood, bone, and tissue. While this...
Did You Know?
The surface area of your lungs is roughly the size of a tennis court.
If the millions of tiny air sacs (alveoli) in your lungs were flattened out, they would cover an...
Did You Know?
The cornea is the only part of the body with no blood supply.
The cornea must remain transparent to allow light to enter the eye, so it has evolved to obtain...
Did You Know?
Your body creates 4 new stomach linings every year.
The stomach lining, or mucosa, is constantly exposed to harsh acidic conditions and must frequently regenerate. It produces...
Did You Know?
Your skin is home to more than 1,000 species of bacteria.
These microorganisms form part of your skin's microbiome, helping protect against harmful pathogens and maintaining skin health. Each...
Did You Know?
Your body produces 25 million new cells each second.
This incredible rate of cell production is necessary to replace cells that die naturally or are damaged. Different...
Did You Know?
A single human hair can hold the weight of a hanging apple.
Human hair is incredibly strong relative to its size, with a tensile strength comparable to aluminum or copper....
Did You Know?
The average person’s body contains enough fat to make seven bars of soap.
Human body fat could theoretically be used to create soap through a process called saponification. An average person...
Did You Know?
Your ears never stop growing throughout your life.
While most body parts stop growing after puberty, ears and noses continue to grow throughout life. This is...