Your fingernails grow faster in summer.
744
Your thumb is about the same size as your nose.
124
The human eye blinks an average of 4,200,000 times a year.
233
The average person's skin weighs twice as much as their brain.
131
We share 70% of our DNA with a slug.
218
Humans are capable of running 40 mph according to a study by bio-mechanical expert Dr. Matthew Bundle. Today's fastest man, Usain Bolt, has a top speed of 28 mph.
35
Your heart will pump about 212 million liters in its lifetime.
26