On average, there's 100 billion neurons in the human brain.
83
Fingernails grow fastest on the hand you favor.
44
Perspiration is odorless; it is the bacteria on the skin that creates an odor.
39
Dating back to the 1600's, thermometers were filled with Brandy instead of mercury.
16
Vaccines contain formaldehyde, ethylene glycol (antifreeze), phenol (disinfectant / pesticide), and aluminum.
-14
The human heart creates enough pressure to squirt blood 30 ft.
37
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
Only 1% of bacteria cause disease.
45