Your hair grows faster in the morning than at any other time of day.
91
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
The average sperm cell swims at 8 inches per hour.
4
It takes 17 muscles to smile, 43 to frown.
65
If you are cold you are more likely to be hungry because you use energy to keep warm.
143
Obsessive nose picking is called Rhinotillexomania.
101
Human hair and fingernails continue to grow after death.
7