Brain freeze is caused by the brain sensing the drop of temperature on your palate and increasing blood pressure in an attempt to save you from freezing.
14
The aorta, the largest artery in the body, is almost the diameter of a garden hose.
37
If your DNA was stretched out it would reach to the moon 6,000 times.
256
You can reschedule your sleeping pattern by not eating 12-16 hours before you want to be awake. Upon eating after this time period, your internal clock will reset to a new day, with the time of your first meal being interpreted as "morning".
11
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193
Your heart beats over 100,000 times a day!
54
A hard working adult sweats up to 4 gallons per day. Most of the sweat evaporates before a person realizes it's there, though!
25