Your heart rate can rise as much as 30% during a yawn.
69
Sex burns about 360 calories per hour.
861
A person can live without food for about a month, but only about a week without water.
156
If you cut a 'V' shape into your toe nails, you can prevent 'in-grown' toe nails.
22
Every time you sneeze some of your brain cells die.
113
The human brain is insensitive to pain.
76
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

