We blink 25 times a minute.
51
Taphephobia is the fear of being buried alive!
44
Gardening is said to be one of the best exercises for maintaining healthy bones.
40
The largest cell in the human body is the female egg and the smallest is the male sperm.
682
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193
The smallest human penis ever recorded was just 5/8 of an inch long!
77
The focusing muscles of the eyes move around 100,000 times a day. To give your leg muscles the same workout, you would need to walk 80km (50 miles) every day.
21
Cracking your knuckles does not actually hurt your bones or cause arthritis. The sound you hear is just gas bubbles bursting.
18