It takes about 20 seconds for a red blood cell to circle the whole body.
102
Children are poisoned most frequently by eating harmful plants.
13
The average office desk has 400 times more bacteria than a toilet.
22
Human teeth are almost as hard as rocks!
47
The largest cell in the human body is the female egg and the smallest is the male sperm.
682
Your heart will pump about 212 million liters in its lifetime.
26
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
Your stomach produces a new layer of mucus every two weeks so that it doesn't digest itself.
160