A human being loses an average of 40 to 100 strands of hair a day.
133
All humans have the ability to see ultraviolet light, but it is passively filtered out by the eye's lens. People who undergo surgery to remove the lens can detect ultraviolet light.
22
The human brain doesn't stop developing until about 25 years old.
102
Your thumb is about the same size as your nose.
124
The human body contains over a billion miles of DNA.
147
The human brain uses approximately as much energy as a 10 watt light bulb.
120
Our eyes are always the same size from birth, but our nose and ears never stop growing.
269