The lense of the eye continues to grow throughout a person's life.
34
You can alleviate a tickly throat by scratching your ear.
9
Dating back to the 1600's, thermometers were filled with Brandy instead of mercury.
16
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
All humans have the ability to see ultraviolet light, but it is passively filtered out by the eye's lens. People who undergo surgery to remove the lens can detect ultraviolet light.
21
If you cut a 'V' shape into your toe nails, you can prevent 'in-grown' toe nails.
22
On average, there's 100 billion neurons in the human brain.
83