Your wounds heal faster if you lick them, you instinctively do this for that reason. Tears help, too.
20
Nearly 80 percent of all sudden cardiac arrests happen at home.
7
Most dreams last only 5 to 20 minutes.
79
It takes 17 muscles to smile, 43 to frown.
65
Your heart rate can rise as much as 30% during a yawn.
69
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
Only 1% of bacteria cause disease in humans!
2