The world's most mysterious number has popped up in the uterus. Known as the Golden Ratio, 1.618 is hailed by devotees as the formula for perfect natural beauty. Fanatics say the most aesthetically-pleasing rectangle and the most attractive smiles adhere to the numeral. Now Jasper Verguts, a Belgian gynecologist, has discovered the ratio inside the female reproductive system, reports the Guardian.
Verguts measured the organs of 5,000 women using ultrasound and found that the ratio of length to width in the most fertile women came out to 1.6. "This is the first time anyone has looked at this, so I am pleased it turned out so nicely," said Verguts. The ratio was initially derived from the Fibonacci sequence, a chain of numbers in which every figure is the sum of the previous two. Want to see it on yourself? The distance between the first and second knuckles on each finger is about 1.618 times the distance between the second and third.