Humans are taller in the morning by about half an inch due to spinal discs rehydrating during sleep.

The brain consumes a significant portion of the body's energy.

Fact #967 · Human Body

Humans have survived situations once thought impossible.

Fact #3083 · Human Body

Humans can survive with only one functioning kidney.

Fact #3071 · Human Body

Humans are the only animals with chins — no other primate or mammal has one.

Fact #3502 · Human Body

The human skeleton renews itself over time.

Fact #133 · Human Body

Only about 5% of people have detached retinas in their lifetime.

Fact #2878 · Human Body

Less than 1% of people have heterochromia, where eyes are different colors.

Fact #2869 · Human Body

The human skeleton is made up of over 200 bones in adulthood.

Fact #34 · Human Body