The human body contains over a billion miles of DNA.
147
If you are cold you are more likely to be hungry because you use energy to keep warm.
143
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
Your thumb is about the same size as your nose.
124
The human brain doesn't stop developing until about 25 years old.
102
Poor eyesight (myopia) is associated with higher IQ.
232
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193