Your thumb is about the same size as your nose.
124
Only 1% of bacteria cause disease.
45
The chemicals indole and skatole, which help to account for the particular smell of human feces, are used as ingredients in perfume!
-3
If your stomach didn't produce a new layer of mucous every two weeks, it would digest itself.
33
A fetus develops fingerprints at eighteen weeks!
32
Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
39
From the age of thirty, humans gradually begin to shrink in size.
1