What is beautiful? While there is no simple answer, many scientists are piecing together the puzzle that makes up a popular definition of beauty. There are some common threads: symmetry, waist-to-hip ratio, and masculine and feminine traits that the majority is attracted to. Those attractions are all linked to sex and reproduction, but are there really universal standards of beauty? Or is beauty as varied as the cultures of the world? This episode will also look at the growing trend, or some would say addiction, to beauty in North America. The desire to drastically change one's physical appearance through plastic surgery and cosmetic procedures has sparked a boom that shows no signs of stopping. We'll also reveal the life benefits to being beautiful.

04 Nov 200530m

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S06E05