When you take a step, you are using up to 200 muscles.
886
The human brain has the capacity to store everything that you experience.
4k
The average person's skin weighs twice as much as their brain.
131
Enamel is hardest substance in the human body.
61
Your thumb is about the same size as your nose.
124
Cracking your knuckles does not actually hurt your bones or cause arthritis. The sound you hear is just gas bubbles bursting.
18
The average sperm cell swims at 8 inches per hour.
76
Chewing gum boosts your brain power.
285