Posted : 8 years ago

On average, you speak almost 5,000 words a day – although almost 80% of speaking is self-talk (talking to yourself).

Hippocrates, the Father of Medicine, suggested that a woman could enlarge her bust line by singing loudly and often.

The first human sex change took place in 1950 when Danish doctor Christian Hamburger operated on New Yorker George Jargensen, who became Christine Jargensen.

King Henry I, who ruled in the England in the 12th century, standardised the yard as the distance from the thumb of his outstretched arm to his nose.

Einstein’s brain was of average size (1375 grams – 49oz).

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Posted : 8 years ago

The colored part of the eye is called the iris. Behind the iris is the soft, rubbery lens which focuses the light on to a layer, called the retina, in the back of the eye. The retina contains about 125 million rods and 7 million cones. The rods pick up shades of grey and help us see in dim light. The cones work best in bright light to pick up colours.

Your mouth produces 1 liter (1.8 pints) of saliva a day.

Over the last 150 years the average height of people in industrialized nations increased by 10 cm (4 in).

In the Middle Ages the length from the tip of the middle finger to the elbow was called an ell.

Fingernails grow nearly 4 times faster than toenails.