You mostly breathe from only one nostril at a time!
75
If you were to roll a lung from a human body and out flat it would be the size of a tennis court.
36
Flu shots only work about 70% of the time.
18
Wearing headphones for an hour increases the bacteria in your ear 700 times.
235
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
Every year your body replaces 98% of your atoms.
119
Every cigarette smoked cuts at least five minutes of life on average, which is roughly the time it takes to smoke one cigarette.
118
Vaccines contain formaldehyde, ethylene glycol (antifreeze), phenol (disinfectant / pesticide), and aluminum.
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