Your heart rate can rise as much as 30% during a yawn.
69
A toothbrush within 6 feet of a toilet can get airborne bacteria from flushing.
15
When you get blackout drunk, you don't actually forget anything; your brain wasn't "recording" in the first place.
23
If you unfolded your brain, it would cover an ironing board.
42
In one day, adult lungs move about 10,000 litres of air.
11
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
On average, there's 100 billion neurons in the human brain.
83
Midgets and dwarfs almost always have normal sized children.
54