Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
After age 30, the brain begins to lose about 50,000 neurons per day - shrinking the brain .25% each year.
55
Our Right Lungs takes more air than our left lung.
194
Enamel is hardest substance in the human body.
61
Your thumb is about the same size as your nose.
124
The human brain doesn't stop developing until about 25 years old.
102