The classic hourglass figure made famous by Sophia Loren and Marilyn Monroe is dying out, and the people responsible for it are the high-powered career women, say experts.
According to experts, working women are less likely to have the classic curvy shape of a tiny waist, wide hips and big boobs.
Ladies today are choosing to be more straight up and down, like actress Keira Knightley, 23, and singer Cheryl Cole, 25, with weight around the middle rather than the hips.
And it is hard work and stress levels that are putting an end to curvy girls like singer Beyoncé Knowles, 27, and model Lucy Pinder, 25, reports the Daily Star.
Researchers have found that women with a waist-to-hip ratio of 0.7 - where the waist circumference is 70 percent of the hips - or lower, have higher fertility rates and less chance of chronic disease.
According to Elizabeth Cashdan, women who work release more hormones that help them become physically stronger, so they can deal with the stress of high-powered jobs.
But as a result, women develop a figure more like Kate Moss, 34, and Madonna, 50, with fewer curves, small boobs and no hips.
Cashdan reached the conclusion after measuring waist-to-hip ratio in 37 countries.
She said: "Waist-to-hip ratio may be a useful signal to men... but whether men prefer it should depend on the degree to which they want their mates to be strong, tough, economically successful and politically competitive."
She added: "And from a woman's perspective, men's preferences are not the only thing that matters. This is about trade-offs. The human body is a compromise."