My school handbook still got say:
*As an adult, you have more than 20 square feet of skin on your body - about the same square footage as a blanket for a queen-size bed.
*Every minute, 30-40000 dead skin cells fall from your body.
*The average person falls asleep in seven minutes.
*30 years ago the computer mouse was invented.

Hahaha...Does it mean 30 years ago no computer mouse?! OMG...