Your thumb is about the same size as your nose.
124
Obsessive nose picking is called Rhinotillexomania.
101
Your fingernails grow faster in summer.
744
Your heart will pump about 212 million liters in its lifetime.
26
Cats have a weak sense of taste. They have only 473 tastebuds, humans have 9,000.
307
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
It has been scientifically proven that stroking a cat can lower one's blood pressure!
456