Lack of water is the #1 trigger of daytime fatigue.
148
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 human brain is insensitive to pain.
76
Your heart will pump about 212 million liters in its lifetime.
26
Clinophobia is the fear of beds!
30
Sitting straight upright in your chair is bad for your back. You should instead slouch at an angle of 135 degrees.
10
The average female will have 3.3 pregnancies in her life.
49