There are about 1,400 different species of bacteria in your belly button.
10
Dogs can be trained to identify the scent of lung cancer long before symptoms develop.
190
The human brain doesn't stop developing until about 25 years old.
102
The average female will have 3.3 pregnancies in her life.
49
The heart pumps about 1 million barrels of blood during an average lifetime!
30
The average human body contains enough iron to make a small nail.
50
Drinking watermelon juice before a workout helps reduce muscle soreness.
21