There are times when you're walking that the pressure on your feet exceeds your body weight, and when you're running, it can be three or four times your weight.
62
Lack of water is the #1 trigger of daytime fatigue.
148
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
Your ears secrete more earwax when you are afraid than when you aren't.
235
Our eyes are always the same size from birth, but our nose and ears never stop growing.
269
Poor eyesight (myopia) is associated with higher IQ.
232
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
On average, someone in the US suffers a stroke every 40 seconds; someone dies every 3 minutes from stroke.
56