A study done by the Universities of Pittsburgh and California, involved 16,000 women and girls, revealed the secrets.
Researchers ...found the more voluptuous performed better on cognitive tests - as did their children.
Researchers concluded that it was not necessary for a woman to be skinny – what mattered was that her waist should be smaller than her hips. The bigger the difference between a woman's waist and hips the better. A ratio of 3:5 was found to be ideal.
Researchers writing in Evolution and Human Behaviour speculated this was to do with fatty acids found on the hips.
In this area, the fat is likely to be the much touted Omega-3 [that are essential for the growth of the brain during pregnancy] which could improve the woman's own mental abilities as well as those of her child during pregnancy.
Nigella Lawson (picture left, the brief bio below from wikipedia), one of the UK's most famous curvaceous women, who graduated from Oxford University, is such a woman.
Nigella Lucy Lawson (born January 6, 1960) is an English journalist, food writer, broadcaster and television presenter. After graduating from Oxford, Lawson worked as a book reviewer and soon became the deputy literary editor of the Sunday Times. She proceeded to write her first cookery book entitled How to Eat which became an instant bestseller. Lawson wrote her second bestselling book, How to be a Domestic Goddess in 2000, winning her a prestigious British Book Award. Her career progressed in the United Kingdom when she hosted the successful Channel 4 cookery programme, Nigella Bites, which was accompanied with another bestseller. She also hosted a less successful chat show on ITV in 2005, which was followed by two highly successful cookery series on BBC Two. Lawson also enjoys a flourishing career in the United States where Nigella Feasts has been aired. Her own cookware range is reportedly worth £7 million a year, and she has sold nearly 3 million cookery books worldwide.