Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
All 13 minerals necessary for human life can be found in alcohol beverages.
282
The human brain doesn't stop developing until about 25 years old.
102
Your heart will pump about 212 million liters in its lifetime.
26
Human hair and fingernails continue to grow after death.
7
The human brain is more active during sleep than during the day.
28
A person will create enough saliva to fill two average size swimming pools during his lifetime.
191