There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
In the average lifetime a person will breath in about 44 pounds of dust.
21
You see your nose at all times, your brain just chooses to ignore it.
30
The brain can stay alive for 4 to 6 minutes without oxygen. After that cells begin die.
193
One quarter of the bones in your body are in your feet!
36
The lense of the eye continues to grow throughout a person's life.
34
An average heart beats 100,000 times a day, pumping some 2,000 gallons of blood through its chambers. Over a 70-year life span, that adds up to more than 2.5 billion heartbeats.
73
