Sentences with phrase «low sex ratio»

But a low sex ratio also lowers the living standards of women and causes turmoil in relationships, mainly because men typically have more power in society, which they tend to exercise crudely when there are extra women around.

The lowest sex ratio — about 0.79 — is in Djibouti on the Horn of Africa, where an unemployment rate of 40 to 50 percent has forced men to emigrate.

Not exact matches

«The researchers also found that after taking into account the effect of age and sex, morning people were likely to have lower — and thus generally more healthy — BMI, or body - mass index, a measure of the ratio between height and weight.»

Sex - ratio - biasing constructs for the control of invasive lower vertebrates.

Among his recent findings: When the sex ratio is low (too many women), women are more slender; when women are in short supply, as was the case in the United States in the 1950s, women are more curvaceous, perhaps because they are trying to look the part of traditional wife and mother.

Anthropological studies have suggested that there are consistent sex differences in the ratio of the lengths of the index and ring fingers (expressed as 2D: 4D), with men showing a lower average 2D: 4D than women.

Because of this sex difference, some scientists believe that a low ratio could be a marker for higher prenatal testosterone levels, although it's not clear how the hormone might influence finger development.

Lower levels of estrogen and testosterone may weaken your bones and your sex drive, and furthermore, lower estrogen - to - testosterone ratios may trigger hair loss and heart disLower levels of estrogen and testosterone may weaken your bones and your sex drive, and furthermore, lower estrogen - to - testosterone ratios may trigger hair loss and heart dislower estrogen - to - testosterone ratios may trigger hair loss and heart disease.

Political unrest, natural disasters and maternal stress are among a long list of traits suggested to lower the male bias in human sex ratios [4], [5], whereas during the First and Second World Wars in Europe, a more male - biased SSR has been documented [6].

UK women's responses to female - biased operational sex ratios varied by women's current and childhood socio - economic status and reproductive strategy: high socio - economic status women with slow life - history strategies moved further towards the slow end of the life - history continuum and delayed reproduction, while low socio - economic status women with fast life - history strategies favoured earlier reproduction [61].

In Japan, female - biased sex ratios were associated with poorer union stability, shorter life expectancy, lower total fertility rates, and higher rates of spontaneous and artificial abortion [106].

Women having low power within their relationships may be associated with female - biased population sex ratios [62,106].