Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
Your thumb is about the same size as your nose.
124
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
Yawns are more contagious among people with closer relationships.
163
The human body contains over a billion miles of DNA.
147
The human brain has the capacity to store everything that you experience.
4k
The average sperm cell swims at 8 inches per hour.
76