Your thumb is about the same size as your nose.
124
On average a woman has 4 sexual partners in her lifetime.
-143
Yawns are more contagious among people with closer relationships.
163
It has been scientifically proven that stroking a cat can lower one's blood pressure!
456
The human brain uses approximately as much energy as a 10 watt light bulb.
120
Only humans shed emotional tears.
331
