A person will create enough saliva to fill two average size swimming pools during his lifetime.
191
You forget 90% of your dreams.
256
A human brain produces as many as 12,000 to 50,000 thoughts per day, depending on how deep a thinker a person is.
23
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
Enamel is hardest substance in the human body.
61
The human brain doesn't stop developing until about 25 years old.
102
It takes approximately 12 hours for food to entirely digest.
93
