The average person's skin weighs twice as much as their brain.
131
Yawns are more contagious among people with closer relationships.
163
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
The human brain doesn't stop developing until about 25 years old.
102
Chewing gum boosts your brain power.
285
Enamel is hardest substance in the human body.
61
Your heart will pump about 212 million liters in its lifetime.
26
One human hair can support 3 ounces.
191