Men rate women as attractive when their waist size is 60 to 70 percent of their hip size. Man all over the world, including the isolated habitant, prefer a similar shape.
It is found that viewing women with curvy figures stimulate a powerful internal reward system, lightening up the same pleasure center in men’s brains that are targeted by cocaine and heroine. People doubt that this unique taste has been shaped over millennia by evolutionary forces, like our taste for sugar and fat.
The average playmate or adult film star is 5 feet 6 inches tall and weights 115 pounds, giving her body mass index (BMI) of 18.5. Her bust, waist, and hip sizes are 35-22-35., so that her waist is 66 percent of her hip. By comparison, a typical American undergraduate is 75 percent of her waist. The playmate/s hip are similar to those students with the same BMI-53 percent of her height; it’ just that her waist size is three inches smaller.. So men prefer women who are taller than average, with normal size-hips for their moderately low BMIs, and very small waists.
Her unusually small waist is only part of what makes a playmate so curvy. The other part is having relatively normal size hips and legs that are well endowed with fat. Even a thin woman carries an astonishing amount of fat in her legs and hips-about one third of her body weight. Men everywhere admire the fat located here. Those surveyed in 54 non-western tribal groups almost always preferred women with large or fat hips and legs.
The total amount of fat a human female carries is seven times that of other animals, and much more than men! Only bears ready to hibernate, penguins facing a sunless winter without food, or whales swimming in arctic waters have fat percentages that approach those in normal healthy, trim young women.
One clue is that fat stored there is protected; it doesn’t figure into weight fluctuations. It usually remains untouched by weight shifts. Only during the last few months of pregnancy and while nursing do woman start breaking down this lower-body fat, making it exclusively available to the rapidly growing infant.
Just as human mother have seven times more body fat than other animal, Human babies have a body part that is seven times larger than the one in other animals-an enormous brain that grows faster in the first two years of life. Other than water, the brain is mostly fat and has lot of a particular kind of fat: an omega-3 fat called DHA. They have to come from what we eat, and women tend to stash their DHA in the same hip and leg fat that men value.
A human baby’s need for DHA to feed its rapidly growing brain-DHA is especially incorporated into nerve cell membranes, facilitating the rapid transmission of information-is so great that a mother can’t supply enough from her everyday diet. Most of DHA in a mother’s milk comes from what she has stored over the years in her lower-body fat. Even then, her supply is limited, as it is depleted by each child.
That‘s what men’s brains are telling us---that a woman’s figure signals the abundant of her DHA supply. Studies show that women with curvier hourglass figures have more DHA stored in their body fat. And because DHA makes brains work better, these curvier women also tends to have smarter children and, contrary to what you might expect, to be smarter themselves.
In other studies show that children who live in countries where mother have higher level of DHA in their breast milk score higher on international tests of academic abilities regardless of differences in income. Children earn the highest scores in places with very high level of omega-3 fat intakes, like Japan, Hongkong, and Singapore, where most women have slender hourglass figures. Japaness women have four times more DHA in their blood than do American women, with high scoring children and low level of obesity.
To be continued
（太困，觉觉先）
