Quick naps not only improve your alertness, but they also help in decision making, creativity and sensory perception.
149
Every year your body replaces 98% of your atoms.
119
The human body contains over a billion miles of DNA.
147
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
The average sperm cell swims at 8 inches per hour.
76
Enamel is hardest substance in the human body.
61
Yawns are more contagious among people with closer relationships.
163
The human brain doesn't stop developing until about 25 years old.
102