When you look up at the blue sky and see white dots flying around, you’re actually seeing your own white blood cells.
30
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
Holding hands with someone you love can alleviate physical pain as well as stress and fear.
26
If you were to roll a lung from a human body and out flat it would be the size of a tennis court.
36
It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165
Your ribs move about 5 million times a year, every time you breathe!
60
10 seconds is the amount of time until unconsciousness after the loss of blood supply to the brain.
108
On average, someone in the US suffers a stroke every 40 seconds; someone dies every 3 minutes from stroke.
57