The human brain doesn't stop developing until about 25 years old.
102
You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
17
The human brain uses approximately as much energy as a 10 watt light bulb.
120
In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
198
Your thumb is about the same size as your nose.
124
The human body contains over a billion miles of DNA.
147
An Indian man known as "Snake Manu" can put small snakes, including deadly cobras, into his mouth and pass them out through his nose.
59
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217