World Library  
Flag as Inappropriate
Email this Article

Waist–hip ratio

Article Id: WHEBN0003337726
Reproduction Date:

Title: Waist–hip ratio  
Author: World Heritage Encyclopedia
Language: English
Subject: Waist-to-height ratio, Female promiscuity, Anogenital distance, Human weight, Physical attractiveness
Collection: Anthropometry, Body Shape, Human Weight, Medical Signs, Physical Attractiveness, Ratios
Publisher: World Heritage Encyclopedia

Waist–hip ratio

Measurement of waist hip ratio: In a lean person (left), the waist can be measured at its narrowest point, while for a person with convex waist (right), it may be measured at about one inch[1] above the navel. The hip is measured at its widest portion of the buttocks at left, and at the greater trochanters at right.

Waist–hip ratio or waist-to-hip ratio (WHR) is the ratio of the circumference of the waist to that of the hips.

This is calculated as waist measurement divided by hip measurement (W/H). For example, a person with a 25" waist and 38" hips has a waist-hip ratio of about 0.66.


  • Measurement 1
    • WHO protocol 1.1
    • Practical measurement 1.2
  • Indicator of health 2
    • Stress 2.1
  • Growth and development 3
    • Sex characteristics 3.1
    • Fertility 3.2
    • Cognitive ability 3.3
  • Human genetics 4
  • Measure of attractiveness 5
  • Food 6
  • See also 7
  • References 8
  • Further reading 9
  • External links 10


WHO protocol

According to the National Institutes of Health and the National Health and Nutrition Examination Survey used results obtained by measuring at the top of the iliac crest. Waist measurements are usually obtained by laypersons by measuring around the waist at the navel, but research has shown that these measurements may underestimate the true waist circumference.[3]

For both measurements, the individual should stand with feet close together, arms at the side and body weight evenly distributed, and should wear little clothing. The subject should be relaxed, and the measurements should be taken at the end of a normal expiration. Each measurement should be repeated twice; if the measurements are within 1 cm of one another, the average should be calculated. If the difference between the two measurements exceeds 1 cm, the two measurements should be repeated.[3]

Practical measurement

Practically, however, the waist is more conveniently measured simply at the smallest circumference of the natural waist, usually just above the belly button, and the hip circumference may likewise be measured at its widest part of the buttocks or hip.[4] Also, in case the waist is convex rather than concave, such as is the case in pregnancy, different body types, and obesity, the waist may be measured at a horizontal level 1 inch above the navel.[1]

Indicator of health

The WHR has been used as an indicator or measure of health, and the risk of developing serious health conditions. Research shows that people with "apple-shaped" bodies (with more weight around the waist) face more health risks than those with "pear-shaped" bodies who carry more weight around the hips.

WHR is used as a measurement of WHO states that abdominal obesity is defined as a waist–hip ratio above 0.90 for males and above 0.85 for females, or a body mass index (BMI) above 30.0.[5] The National Institute of Diabetes, Digestive and Kidney Diseases (NIDDK) states that women with waist–hip ratios of more than 0.8, and men with more than 1.0, are at increased health risk because of their fat distribution.[6]

Women Men Women Men Women Men
under-weight ? ? ? ? ? ?
normal weight < 0.80 < 0.90 ? ? ? ?
over-weight 0.80–0.84 0.90–0.99 ? ? ? ?
obesity > 0.85 > 1.00 > 0.85 > 0.90 > 0.80 > 1.00

WHR has been found to be a more efficient predictor of mortality in older people than waist circumference or BMI.[8] If obesity is redefined using WHR instead of BMI, the proportion of people categorized as at risk of heart attack worldwide increases threefold.[9] The body fat percentage is considered to be an even more accurate measure of relative weight. Of these three measurements, only the waist–hip ratio takes account of the differences in body structure. Hence, it is possible for two women to have vastly different body mass indices but the same waist–hip ratio, or to have the same body mass index but vastly different waist–hip ratios.

Even in ancient civilizations globally, female representations are most often in the 0.6-0.7 range for WHR, suggesting a preference towards lower WHR.[10]

WHR has been shown to be a better predictor of cardiovascular disease than waist circumference and body-mass index.[11] However, other studies have found waist circumference, not WHR, to be a good indicator of cardiovascular risk factors,[12] body fat distribution,[13] and hypertension in type 2 diabetes.[14]


The stress hormone

  • "Waist-hip ratio should replace body mass index as indicator of mortality risk in older people" – EurekAlert August 8, 2006

External links

  • Karremans J. C., Frankenhuis W. E., Arons S. (2010), "Blind men prefer a low waist-to-hip ratio", Evolution and Human Behavior, 31: 182–186; doi:10.1016/j.evolhumbehav.2009.10.001.

Further reading

  1. ^ a b Brown JE, Potter JD, Jacobs DR, Kopher RA, Rourke MJ, Barosso GM, Hannan PJ, Schmid LA (1996). "Maternal Waist-to-Hip Ratio as a Predictor of Newborn Size: Results of the Diana Project". Epidemiology 7 (1): 62–6.  
  2. ^ "STEPwise approach to surveillance (STEPS)". World Health Organization. Retrieved March 21, 2012. 
  3. ^ a b c "Waist Circumference and Waist-Hip Ratio, Report of a WHO Expert Consultation" (PDF). World Health Organization. 8–11 December 2008. Retrieved March 21, 2012. 
  4. ^ In some places it is commonly accepted that a woman's waist is measured one inch (2.5cm) above her navel and that a man is measured one inch below his navel. Waist To Hip Calculator at University of Maryland Medical System. Retrieved Dec 2010
  5. ^ a b
  6. ^ a b "Waist to Hip Ratio". 
  7. ^ DGSP: S 1- Leitlinie Vorsorgeuntersuchung im Sport. 2007
  8. ^ Price GM, Uauy R, Breeze E, Bulpitt CJ, Fletcher AE (August 2006). "Weight, shape, and mortality risk in older persons: elevated waist-hip ratio, not high body mass index, is associated with a greater risk of death". Am. J. Clin. Nutr. 84 (2): 449–60.  
  9. ^ Yusuf S, Hawken S, Ounpuu S, Bautista L, Franzosi MG, Commerford P, Lang CC, Rumboldt Z, Onen CL, Lisheng L, Tanomsup S, Wangai P, Razak F, Sharma AM, Anand SS (November 2005). "Obesity and the risk of myocardial infarction in 27,000 participants from 52 countries: a case-control study". Lancet 366 (9497): 1640–9.  
  10. ^ a b Singh D (December 2002). "Female mate value at a glance: relationship of waist-to-hip ratio to health, fecundity and attractiveness" (PDF). Neuro Endocrinol. Lett. 23. Suppl 4: 81–91.  
  11. ^ Mørkedal B, Romundstad PR, Vatten LJ (2011). "Informativeness of indices of blood pressure, obesity and serum lipids in relation to ischaemic heart disease mortality: the HUNT-II study". European Journal of Epidemiology 26 (6): 457–461.  
  12. ^ Dobbelsteyn CJ, Joffres MR, MacLean DR, Flowerdew G (May 2001). "A comparative evaluation of waist circumference, waist-to-hip ratio and body mass index as indicators of cardiovascular risk factors. The Canadian Heart Health Surveys". Int. J. Obes. Relat. Metab. Disord. 25 (5): 652–61.  
  13. ^ Ketel IJ, Volman MN, Seidell JC, Stehouwer CD, Twisk JW, Lambalk CB (June 2007). "Superiority of skinfold measurements and waist over waist-to-hip ratio for determination of body fat distribution in a population-based cohort of Caucasian Dutch adults". Eur. J. Endocrinol. 156 (6): 655–61.  
  14. ^ Picon PX, Leitão CB, Gerchman F, Azevedo MJ, Silveiro SP, Gross JL, Canani LH (April 2007). "[Waist measure and waist-to-hip ratio and identification of clinical conditions of cardiovascular risk: multicentric study in type 2 diabetes mellitus patients]". Arq Bras Endocrinol Metabol (in Portuguese) 51 (3): 443–9.  
  15. ^ Wardle, J; Chida, Y; Gibson, EL; Whitaker, KL; Steptoe, A (2011). "Stress and adiposity: a meta-analysis of longitudinal studies". Obesity 19 (4): 771–778.  
  16. ^ Pedersen, SB; Jonler, M; Richelsen, B (1994). "Characterization of regional and gender differences in glucocorticoid receptors and lipoprotein lipase activity in human adipose tissue. Journal of Clinical Endocrinology and Metabolism". Journal of Clinical Endocrinology and Metabolism 78 (1): 1354–1359. 
  17. ^ Epel, ES; McEwen, B; Seeman, T; Matthews, K; Castellazzo, G; Brownell, KD (2007). "Stress and body shape: stress-induced cortisol secretion is consistently greater among women with central fat". Psychosomatic Medicine 62 (5): 623–632.  
  18. ^ a b Samaras, K; Campbell, LV (1997). "The non-genetic determinants of central adiposity". International Journal of Obesity and Related Metabolic Disorders : Journal of the International Association for the Study of Obesity 21 (10): 839–845.  
  19. ^ Murray, R (2010). "Partial growth hormone deficiency is associated with an adverse cardiovascular risk profile and increased carotid intima-medial thickness". Clinical Endocrinology (Oxford) 73 (4): 508–515. 
  20. ^ a b c Gomes-Santos, E (2014). "Increased visceral adiposity and cortisol to cortisone ratio in adults with congenital isolated GH deficiency.". Journal of Clinical Endocrinology 99 (9): 3285–3289. 
  21. ^ Esen, I (2013). "The association between growth response to growth hormone and baseline body composition of children with growth hormone deficiency". Growth Hormone and IGF Research 23 (5): 196–199.  
  22. ^ Falhammer, H (2011). "Cardiovascular risk, metabolic profile, and body composition in adult males with congenital adrenal hyperplasia due to 21-hydroxylase deficiency". European Journal of Endocrinology 164 (2): 285–293.  
  23. ^ "The Rules of Attraction in the Game of Love". 
  24. ^ a b Marlowe, F; Apicella, C; Reed, D (2005). "Men's preferences for women's profile waist-to-hip ratio in two societies" (PDF). Evolution and Human Behavior 26 (6): 458–68.  
  25. ^ Zaadstra BM, Seidell JC, Van Noord PA, te Velde ER, Habbema JD, Vrieswijk B, Karbaat J. (1993). "Fat and female fecundity: prospective study of effect of body fat distribution on conception rates". BMJ 306 (6876): 484–487.  
  26. ^ Singh‚ D. (1993a) . Adaptive significance of female physical attractiveness: Role of the waist-to-hip ratio. Journal of Personality and Social Psychology‚ 65‚ 293-307.
  27. ^ Singh‚ D. (1993b). Body shape and women’s attractiveness. The critical role of waist-to-hip ratio. Human Nature‚ 4‚ 297-321.
  28. ^ Cagnacci, A; Zanin, R; Cannoletta, M; Generali, M; Caretto, S; Volpe, A (2007). "Menopause, estrogens, progestins, or their combination on body weight and anthropometric measure". Fertility and Sterility 88 (6): 1603–1608.  
  29. ^ Freeman, EW; Sammel, MD; Lin, H; Gracia, CR (2007). "Obesity and reproductive hormone levels in the transition to menopause". Menopause 17 (4): 718–726.  
  30. ^ Cagnacci et al., 2007
  31. ^ Genazzani, AR; Gambacciani, M (2006). "Effect of climacteric transition and hormone replacement therapy on body weight and body fat distribution". Gynecological Endocrinology : the Official Journal of the International Society of Gynecological Endocrinology 22 (3): 145–150. 
  32. ^ Samaras, K; Campbell, LV (1997). "The non-genetic determinants of central adiposity". International Journal of Obesity and Related Metabolic Disorders: Journal of the International Association for the study of Obesity 21 (10): 839–845. 
  33. ^ a b Lassek, W.; Gaulin S. (January 2008). "Waist-hip ratio and cognitive ability: is gluteofemoral fat a privileged store of neurodevelopmental resources?". Evolution and Human Behavior 29 (1): 26–34.  
  34. ^ Pear shaped' genes found – NHS Choices – Health News"'". 
  35. ^ Singh D (August 1993). "Adaptive significance of female physical attractiveness: role of waist-to-hip ratio". J Pers Soc Psychol 65 (2): 293–307.  
  36. ^ Buss, David. The Evolution of Desire: Strategies of Human Mating (hardcover) (second ed.). New York: Basic Books. p. 56. 
  37. ^ Wilson, Glenn D.; Brazendale, Anthony H. (1974). "Psychological correlates of sexual attractiveness: An empirical demonstration of denial and fantasy gratification phenomena?". Social Behavior and Personality: an international journal 2: 30–4.  
  38. ^ Wilson, Glenn; Nias, David; Brazendale, Anthony (1975). "Vital Statistics, Perceived Sexual Attractiveness, and Response to Risque Humor". The Journal of Social Psychology 95 (2): 201–5.  
  39. ^ Perfect waist-to-hip ratio is 0.7
  40. ^ Singh, Devendra; Young, Robert K. (2001-06-27). "Body Weight, Waist-to-Hip Ratio, Breasts, and Hips: Role in Judgments of Female Attractiveness and Desirability for Relationships" (PDF). Ethology and Sociobiology 16 (6): 483–507.  
  41. ^ Fisher ML, Voracek M (June 2006). "The shape of beauty: determinants of female physical attractiveness". J Cosmet Dermatol 5 (2): 190–4.  
  42. ^ Dixson BJ, Dixson AF, Li B, Anderson MJ (January 2007). "Studies of human physique and sexual attractiveness: sexual preferences of men and women in China". Am J Hum Biol 19 (1): 88–95.  
  43. ^ Marlowe, F.; Wetsman, A. (2001). "Preferred waist-to-hip ratio and ecology" (PDF). Personality and Individual Differences 30 (3): 481–489.  
  44. ^ Dixson BJ, Dixson AF, Morgan B, Anderson MJ (June 2007). "Human physique and sexual attractiveness: sexual preferences of men and women in Bakossiland, Cameroon". Arch Sex Behav 36 (3): 369–75.  
  45. ^ Freedman RE, Carter MM, Sbrocco T, Gray JJ (August 2007). "Do men hold African-American and Caucasian women to different standards of beauty?". Eat Behav 8 (3): 319–33.  
  46. ^ Freedman RE, Carter MM, Sbrocco T, Gray JJ (July 2004). "Ethnic differences in preferences for female weight and waist-to-hip ratio: a comparison of African-American and White American college and community samples". Eat Behav. 5 (3): 191–8.  
  47. ^ Rozmus-Wrzesinska M, Pawlowski B (March 2005). "Men's ratings of female attractiveness are influenced more by changes in female waist size compared with changes in hip size". Biol Psychol 68 (3): 299–308.  
  48. ^ Buss, David M. The Handbook of Evolutionary Psychology. Hoboken: John Wiley & Sons, Inc., 2005. Print.
  49. ^ Singh, D. (1994). "Is thin really beautiful and good? Relationship between waist-to-hip ratio (WHR) and female attractiveness". Personality and Individual Differences 16: 123–132.  
  50. ^ Singh‚ D.‚ & Young‚ R. K. (1995). Body weight‚ waist-to-hip ratio‚ breasts‚ and hips: Role in judgments of female attractiveness and desirability for relationships. Ethology and Sociobiology ‚ 16‚ 483-507.
  51. ^ Dixson, B., Grimshaw, G., Linklater, W., & Dixson, A. (2011). Eye-Tracking of Men's Preferences for Waist-to-Hip Ratio and Breast Size of Women. Archives Of Sexual Behavior, 40(1), 43-50.
  52. ^ Pazhoohi, F., & Liddle, J. R. (2012). IDENTIFYING FEMININE AND MASCULINE RANGES FOR WAIST-TO-HIP RATIO. Journal Of Social, Evolutionary & Cultural Psychology, 6(2), 227-232.
  53. ^ Pazhoohi, F., Hosseinchari, M., and Doyle J. F. (2012). Iranian men’s waist-to-hip ratios, shoulder-to-hip ratios, body esteem and self-efficacy. Journal of Evolutionary Psychology. 10(2), 61–67.
  54. ^ "Bald". 
  55. ^ Holliday, I. E., Longe, O. A., Thai, N., Hancock, P. B., & Tovée, M. J. (2011). BMI not WHR modulates BOLD fMRI responses in a sub-cortical reward network when participants judge the attractiveness of human female bodies. Plos ONE, 6(11), doi:10.1371/journal.pone.0027255
  56. ^ a b c Furnham, Adrian, Melanie Dias, and Alastair McClelland. "The Role of Body Weight, Waist-to-Hip Ratio, and Breast Size in Judgments of Female Attractiveness – Springer." Sex Roles 39.3-4 (n.d.): 311-26.
  57. ^ Pazhoohi F & Liddle J R (June 2012). "Identifying feminine and masculine ranges for Waist-to-Hip ratio". Journal of Social, Evolutionary, and Cultural Psychology 6 (2): 227–232.  
  58. ^ Maki KC, Beiseigel JM, Jonnalagadda SS, Gugger CK, Reeves MS, Farmer MV, Kaden VN, Rains TM (2010). "Whole-grain ready-to-eat oat cereal, as part of a dietary program for weight loss, reduces low-density lipoprotein cholesterol in adults with overweight and obesity more than a dietary program including low-fiber control foods". Journal of the American Dietetic Association 110 (2): 205–14.  
  59. ^ Newby PK, Muller D, Hallfrisch J, Qiao N, Andres R, Tucker KL (2003). "Dietary patterns and changes in body mass index and waist circumference in adults". The American journal of clinical nutrition 77 (6): 1417–25.  
  60. ^ Romaguera D, Ängquist L, Du H, Jakobsen MU, Forouhi NG, Halkjær J, Feskens EJ, van der A DL, Masala G, Steffen A, Palli D, Wareham NJ, Overvad K, Tjønneland A, Boeing H, Riboli E, Sørensen TI (2011). "Food composition of the diet in relation to changes in waist circumference adjusted for body mass index". PLoS ONE 6 (8): e23384.  


See also

A 2011 study suggest that dietary pattern high in fruit and dairy and low in white bread, processed meat, margarine, and soft drinks may help to prevent abdominal fat accumulation.[60]

The mean annual change in waist circumference was more than 3 times as great for subjects in the white-bread cluster as subjects using a diet high in fruit, vegetables, reduced-fat dairy, and whole grains, and low in red and processed meat, fast food, and soda.[59]

Whole-grain, ready-to-eat oat cereal diets reduce low-density lipoprotein cholesterol and waist circumference in overweight or obese adults more than low-fiber control food diets. Weight loss did not vary between groups.[58]

A number of studies have been carried out with focus on food composition of diets in relation to changes in waist circumference adjusted for body mass index.


Waist-hip ratio is also a reliable cue to one’s sex and it is hypothesized that the "individuals who represent a mismatch based on the cue provided by WHR (e.g., women with high WHRs or men with low WHRs) would likely be viewed as unattractive by the opposite sex." [57]

When ratings of the figures' attractiveness were made, generally it appeared that bust size, WHR, and their weight were all important contributory elements. The female participants rated the figures with a low WHR as more attractive, healthy, feminine looking, and in the case of the heavy figure, more kind/understanding than did male participants. This is a particularly interesting finding, as most previous studies report that young women idealize female bodies solely on the basis of thinness. As far as the breast sizes of the slender figures is concerned, whether they had large or small breasts did not appear to have any effect on the ratings of attractiveness or kindness/understanding, and having larger breasts only increased the mean ratings of health and femininity very slightly. However, a heavy figure with a high WHR and a large bust was rated as the least attractive and healthy by all participants.[56]

All the participants were given a booklet with eight pictures in total. Each figure was identified as heavy or slender, feminine WHR or masculine WHR, and large-breasted or small-breasted. The participants rated the figures for four personal attributes (attractiveness, healthiness, femininity, and kindness/understanding).[56]

Another study, conducted by Furnham, was used as an extension of Singh & Young's 1995 investigation. A total of 137 participants were in the study. There were 98 female participants. The age range was between 16 and 67. The majority of participants were undergraduates, and 90% were white British, the remainder being Asian (East Indian) and African. Their educational and socio-economic backgrounds (nearly all middle class) were fairly homogenous, and none had previously participated in any studies involving female body shape or attractiveness. It was predicted that the effect of breast size on judgment of attractiveness and age estimation would be dependent on overall body fat and the size of the waist-to-hip ratio.[56]

WHR versus BMI attractiveness is related to fertility, not fat content. A study performed by Holliday used computer generated female body shapes to construct images which covary with real female body mass (indexed with BMI) and not with body shape (indexed with WHR), and vice versa. Twelve observers (6 male and 6 female) rated these images for attractiveness during an fMRI study. The attractiveness ratings were correlated with changes in BMI and not WHR. The results demonstrated that in addition to activation in higher visual areas, changing BMI also adjusted of the brain reward system. This shows that BMI, not WHR, modulates reward mechanisms in the brain and that this may have important implications for judgements of ideal body size in eating disordered individuals.[55]

To enhance their perceived attractiveness, some women may artificially alter their apparent WHR. The methods include the use of a corset to reduce the waist size and hip and buttock padding to increase the apparent size of the hips and buttocks. In an earlier attempt to quantify attractiveness, corset and girdle manufacturers of the 20th century used a calculation called hip spring[54] (or hip-spring or hipspring), calculated by subtracting the waist measurement from the hip measurement. However this calculation fell into disuse because it is a poor indicator of attractiveness; for example, a hip spring of 10 inches (250 mm) would likely be considered quite attractive for an average-sized adult woman, but a child or petite woman with the same number would more likely be seen as malnourished.

Furthermore, referencing a 2005 study conducted by Johnson and Tassinary looking at animated human walking stimuli, Farid Pazhoohi and James R. Liddle proposed that men do not solely use WHR to evaluate attractiveness, but also a means of sex-differentiation, with higher WHR perceived as more masculine and lower WHR as an indicator of femininity. Pazhoohi and Liddle used this idea as a possible additional explanation as to why men perceive a lower WHR as more attractive – because it relates to an expression of femininity, as opposed to masculinity and a higher WHR.[52] On this basis, it was shown that men with lower, more feminine, WHRs feel less comfortable and self-report lower body esteem and self-efficacy than men with higher, more masculine, WHRs.[53]

Other studies discovered WHR as a signal of attractiveness as well, beyond just examining body fat and fertility. Barnaby Dixson, Gina Grimshaw, Wayne Linklater, and Alan Dixson conducted a study using eye-tracking techniques to evaluate men's fixation on digitally altered photographs of the same woman, as well as asking the men to evaluate the images based on attractiveness. What they found was while men fixated on the woman's breasts in each photo, they selected the images where the woman had a 0.7 WHR as most attractive, regardless of breast size.[51]

Through this study, Singh suggests that males and females may have developed innate mechanisms which detect and make use of the WHR to assess how healthy an individual is and (particularly for men), infer possible mate value. Having a healthy mate improves the chances of producing offspring with inherited genetic protection from various diseases and a healthy mate is more likely to be a good parent (Hamilton & Zuk, 1982; Thornhill, 1993).[50]

In a series of 1993 studies done by Singh, men used WHR and fat distribution to determine a woman’s attractiveness. In his first study, men were shown a series of 12 drawings of women with various WHRs and body fat distribution. Drawings with normal body fat distribution and a moderate WHR were associated with the most positive traits (i.e. attractive, sexy, intelligent and healthy). The drawings with the low WHR were not associated with any positive traits except youthfulness.[49]

Thus, a WHR that indicates pubertal onset, sex, fertility, hormonal irregularities, and/or differentiates male from female in one population may not do so in another.[48]

  1. the normal range of female WHR was often higher than in western cultures,
  2. what constituted locally “WHR” varied, and
  3. average WHR of nubile females and of females of peak fertility varied.

By western standards, women in foraging populations have high numbers of pregnancies, high parasite loads, and high caloric dependence on fibrous foods. These variables change across cultures, suggesting that

"Hip size indicates pelvic size and the amount of additional fat storage that can be used as a source of energy. Waist size conveys information such as current reproductive status or health status ... in westernized societies with no risk of seasonal lack of food, the waist, conveying information about fecundity and health status, will be more important than hip size for assessing a female's attractiveness."
— Journal of Biological Psychology, [47]

It appears that men in westernized societies are more influenced by female waist size than hip size:

Some researchers have found that the waist-hip ratio is a significant measure of female attractiveness.[39] Women with a 0.7 WHR are usually rated as more attractive by men from Indo-European cultures.[40] Preferences may vary, according to some studies,[41] ranging from 0.6 in China, South America, and some of Africa[42] to 0.8 in Cameroon and among the Hazda tribe of Tanzania,[24][43][44] with divergent preferences according the ethnicity of the observed being noted.[45][46]

The concept and significance of WHR as an indicator of attractiveness was first theorized by evolutionary psychologist Devendra Singh at the University of Texas at Austin in 1993.[35][36] Singh argued that the WHR was a more consistent estrogen marker than the bust–waist ratio (BWR) studied at King's College, London by Dr. Glenn Wilson in the 1970s.[37][38]

Measure of attractiveness

Studies in twins have suggested that between 22% and 61% of variability in waist-to-hip ratio may be accounted for by genetic factors.[34]

Human genetics

Children whose mothers had wide hips and a low waist-hip ratio scored highest, leading Lassek and Gaulin to suggest that fetuses benefit from hip fat, which contains long chain polyunsaturated fatty acids, critical for the development of the fetus's brain.[33] In addition, evidence suggests that children of low-WHR teens were protected from the cognitive deficits often associated with teen birth.

Using data from the U.S. National Center for Health Statistics, William Lassek at the University of Pittsburgh in Pennsylvania and Steven Gaulin of the University of California, Santa Barbara, found a child's performance in cognitive tests correlated to their mother's waist-hip ratio, a proxy for how much fat she stores on her hips.[33]

Cognitive ability

Menopause, the natural or surgical cessation of the menstrual cycle, is due to an overall decrease in ovarian production of the hormones estradiol and progesterone. These hormonal changes are also associated with an increase in WHR independent of increases in body mass.[28] Significantly, studies find that large premenopausal WHRs are associated with lower estradiol levels and variation in age of menopause onset.[29] Circulating estrogen preferentially stores lipid deposits in the gluteofemoral region, including the buttocks and thighs, and evidence suggests that menopause-associated estrogen deficiency results in an accumulation of adipose deposits around the abdomen.[30] These menopause-induced changes in body fat distribution can be counteracted with hormone replacement therapy.[31] In contrast, aging males gradually accumulate abdominal fat, and hence increased WHR, in parallel with declining androgen levels.[32]

Evidence suggests that WHR is an accurate somatic indicator of reproductive endocrinological status and long-term health risk. Among girls with identical body weights, those with lower WHRs show earlier pubertal endocrine activity, as measured by high levels of lutenizing hormone and follicle-stimulating hormone, as well as sex steroid (estradiol) activity. A Dutch prospective study on outcome in an artificial insemination program provides evidence for the role of WHR and fecundity.[25] These investigators report that a 0.1 unit increase in WHR decreases the probability of conception per cycle by 30% after adjustment for age, fatness, reasons for artificial insemination, cycle length and regularity, smoking, and parity.[26][27]

A WHR of 0.7 for women and 0.9 for men has been shown to correlate strongly with general health and fertility. Women within the 0.7 range have optimal levels of estrogen and are less susceptible to major diseases such as diabetes, cardiovascular disorders and ovarian cancers.[23] Women with high WHR (0.80 or higher) have significantly lower pregnancy rates than women with lower WHRs (0.70–0.79), independent of their BMIs.[10] Men with WHRs around 0.9, similarly, have been shown to be more healthy and fertile with less prostate cancer and testicular cancer.[24]


Males with congenital adrenal hyperplasia, determined by CYP21A2 mutations, have increased WHRs.[22]

Sex characteristics

In general, adults with growth hormone deficiencies also have increased WHRs.[19][20] Adults with untreated congenital isolated growth hormone deficiency have increased WHRs, possibly from increased cortisone:cortisol ratios and insulin sensitivities.[20] Since these individuals have increased visceral obesity, it has been suggested that a minimal growth hormone secretion would theoretically increase insulin resistance.[20] However, because of the growth hormone deficiency, this insulin resistance point cannot be reached and these individuals are more sensitive to insulin. Increased adipose deposits are therefore more likely to form in these individuals, causing the high WHR. Growth hormone deficiencies have also been correlated with WHRs in prepubertal children; the specific baseline body statistics, such as WHRs, of pre-pubertal children with growth hormone deficiencies can predict growth response effectiveness to artificial growth hormone therapies, such as rhGH treatments.[21]

Growth and development

Evidence for the relationship between cortisol and central fat distribution has primarily been studied in individuals with Cushing’s syndrome.[18] This is characterized by over-exposure to cortisol due to elevated activity of the HPA axis. A primary component of Cushing’s syndrome is the accumulation of fat in the abdominal region, and it is hypothesized that elevated cortisol levels contribute to this accumulation. However, this hypothesis remains contested as cortisol levels only modestly explain variation in central fat distribution. It is more likely that a complex set of biological and neuroendocrine pathways related to cortisol secretion contribute to central adiposity, such as leptin, neuropeptide y, corticotropin releasing factor and the sympathetic nervous system.[18]

This suggests that high WHR might also indicate HPA-axis dysregulation and over-exposure to cortisol. [17] and high WHR experience elevated cortisol reactivity to acute stressors and failure to habituate to repeated stressors, compared to women with normal WHR.BMI Women who have a combination of normal [16]

This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.

Copyright © World Library Foundation. All rights reserved. eBooks from Project Gutenberg are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.