Enamel is hardest substance in the human body.
61
Our Right Lungs takes more air than our left lung.
194
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193
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
Your thumb is about the same size as your nose.
124
Chewing gum boosts your brain power.
285