View Cart Checkout. From Marilyn to Kim, sex symbols all over the world are famed not just for the curves but for having that balanced ratio of waist to hips. So, what is the ideal waist to hip ratio, why is it considered so sexy and how can you achieve it? Over the years, female sizes have changed dramatically. In the past, due in part to different levels of nutrition and overall poorer health, the human body has taken many different shapes and sizes. The image of the curvaceous woman as desirable has its roots in the biological side of things.

WHAT female physical feature most turns men on? The media anthropologist Desmond Morris would have us believe that it is the breasts - we male naked apes confuse them with buttocks, apparently - and their prominence in the media would suggest he may be right. Other evolutionary theorists suggest that we do not even need something as specific as breasts. Absolutely any female who seems young, healthy and fertile will set us off - and there seems plenty of evidence for that, too. Then there are the amateur votes for anything from hands to earlobes. But according to a new theory, the secret of sex appeal lies in the waist - or, to be precise, the waist- hip ratio calculated by dividing the waist measurement by the hip size. The smaller the waist in relation to the hip, the more desirable a woman is seen to be.

The research clearly shows that whether or not people say they value physical attractiveness they still base their actions on it. These studies show that both men and women place a great deal of importance on physical attractiveness. Other attractive traits include warmness and compassion, earning potential, and so on.

The waist-hip ratio or waist-to-hip ratio WHR is the dimensionless ratio of the circumference of the waist to that of the hips. The WHR has been used as an indicator or measure of health, and the risk of developing serious health conditions. WHR correlates with fertility with different optimal values in males and females. Hip circumference should be measured around the widest portion of the buttocks, with the tape parallel to the floor. Waist measurements are usually obtained by laypersons by measurings around the waist at the navel , but research has shown that these measurements may underestimate the true waist circumference.