The human brain doesn't stop developing until about 25 years old.
102
Your thumb is about the same size as your nose.
124
Yawns are more contagious among people with closer relationships.
163
Your heart will pump about 212 million liters in its lifetime.
26
Your body is creating and killing about 2.4 million red blood cells per second.
17
Chewing gum boosts your brain power.
285
One human hair can support 3 ounces.
191
Our Right Lungs takes more air than our left lung.
194