Our attraction to another person’s body increases if that body is symmetrical and in proportion. Likewise, if a face is in proportion, we are more likely to notice it and find it beautiful. Scientists believe that we perceive proportional bodies to be more healthy.
If we keep going, we produce an interesting number which mathematicians call "phi" (Golden Ratio or Golden Section):This ratio was used by architects and artists throughout history to produce objects of great beauty (like Michelangelo’ s "David" and the Greek temples.)Phi (Ö) is like pi (ð) in the sense that it is an irrational number. There is no equivalent fraction for Ö and its decimal keeps going and never stops.The Golden Ratio also occurs in nature, in the patterns we see in sunflowers, pine cones and so on. This is largely because one of the best ways to efficiently pack things tightly together is using the Fibonacci sequence.Phi – The Key to Beauty
The Phi ration in:
Physical BeautyWhy do many people feel that Jessica Simpson is beautiful?