[hmkpoker]

Some of it's genetic, but a lot of it is social. What our friends think is unfortunately a very important factor in choosing a mate, and many people, male and female, are often dissuaded from pursuing their attractions just because their girlfriends might think he's a loser or their guy friends might think she's chunky. Heck, I've done that.

One need only look at the drastic change in standards of beauty. Just a few generations ago, full-figured women were the standard. The skinny waif supermodels we see today would have been considered sickly and bony. Today, they're the norm.