The human brain doesn't stop developing until about 25 years old.
102
Enamel is hardest substance in the human body.
61
Dogs can be trained to identify the scent of lung cancer long before symptoms develop.
190
The average sperm cell swims at 8 inches per hour.
76
Quick naps not only improve your alertness, but they also help in decision making, creativity and sensory perception.
149
Our Right Lungs takes more air than our left lung.
194
Yawns are more contagious among people with closer relationships.
163