The average sperm cell swims at 8 inches per hour.
4
Banging your head against a wall uses 150 calories an hour.
57
A human brain produces as many as 12,000 to 50,000 thoughts per day, depending on how deep a thinker a person is.
23
Your heart beats over 100,000 times a day!
54
The brain can stay alive for 4 to 6 minutes without oxygen. After that cells begin die.
193
According to one report, it would take 800 marijuana joints to kill a person - but the cause of death would be carbon monoxide poisoning.
176
The human brain is insensitive to pain.
76
There is a disease called ichthyosis that turns the skin scaly like a fish.
90