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
Brain freeze is caused by the brain sensing the drop of temperature on your palate and increasing blood pressure in an attempt to save you from freezing.
14
The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
15
Enamel is hardest substance in the human body.
61
In Japan, condoms are commonly sold 'door to door'!
54
20 minutes after smoking a cigarette, blood pressure drops to normal.
37
You have no sense of smell when you're sleeping!
72
Your wounds heal faster if you lick them, you instinctively do this for that reason. Tears help, too.
20