Yawns are more contagious among people with closer relationships.
163
Your thumb is about the same size as your nose.
124
The average sperm cell swims at 8 inches per hour.
76
All the chemicals in a human body combined are worth about 6.25 euro (if sold separately).
266
The average person's skin weighs twice as much as their brain.
131
The human brain has the capacity to store everything that you experience.
4k
Our Right Lungs takes more air than our left lung.
194
Poor eyesight (myopia) is associated with higher IQ.
232