The human brain doesn't stop developing until about 25 years old.
102
When you get goosebumps and your hair stands, the hair helps to trap air, making you feel warmer by keeping in your body heat.
46
The largest cell in the human body is the female egg and the smallest is the male sperm.
682
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
Chewing gum boosts your brain power.
285
If you are cold you are more likely to be hungry because you use energy to keep warm.
143
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217