A human being loses an average of 40 to 100 strands of hair a day.
133
It takes about 20 seconds for a red blood cell to circle the whole body.
102
Your thumb is about the same size as your nose.
124
The human brain doesn't stop developing until about 25 years old.
102
The human body contains over a billion miles of DNA.
147
Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92