The human body contains over a billion miles of DNA.
147
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.
21
A human being loses an average of 40 to 100 strands of hair a day.
133
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
The brain receives 20% of the body’s oxygen and 25% of total body glucose utilization, despite it accounting for only 2% of a person’s weight (about 1.4 kilograms).
8
Held in farts enter your bloodstream and are bad for your body.
26
Your thumb is about the same size as your nose.
124
You see your nose at all times, your brain just chooses to ignore it.
30