Cracking your knuckles does not actually hurt your bones or cause arthritis. The sound you hear is just gas bubbles bursting.
18
Obsessive nose picking is called Rhinotillexomania.
101
One quarter of the bones in your body are in your feet!
36
Your hair grows faster in the morning than at any other time of day.
91
Pain occurs when sounds are above 130 db.
123
Your heart beats over 100,000 times a day!
54
The average person has over 1,460 dreams a year!
69
During a typical human life span, the human heart will beat approximately 2.5 billion times.
21