Cracking your knuckles does not actually hurt your bones or cause arthritis. The sound you hear is just gas bubbles bursting.
18
Human teeth are almost as hard as rocks!
47
The first patented condom was meant to be reused!
47
You see your nose at all times, your brain just chooses to ignore it.
30
Only 1 person in 2 billion will live to be 116.
49
The average person can live for eleven days without water, assuming an average temperature of 60 degrees fahrenheit.
15
Male hospital patients fall out of bed twice as often as female hospital patients.
71