Did You Know?

Your nose can remember 50,000 different scents.

The human olfactory system contains about 400 types of scent receptors that can detect thousands of distinct odors. These memories of smells are closely linked to emotional memories in the brain, which is why certain scents can trigger vivid recollections. The nose can distinguish between more scents than the tongue can taste flavors.

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...

Read more: Your body contains about 0.2 milligrams of gold.

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...

Read more: The surface area of your lungs is roughly the size of a tennis court.

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...

Read more: The cornea is the only part of the body with no blood supply.